diff --git a/pyproject.toml b/pyproject.toml
index ff2d408..707dbaa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,6 +41,7 @@ scripts = bin/evaluate.py
 [tool.setuptools.packages.find]
 include =[
    'nmreval*',
+   'gui_qt*',
    'resources*',
 ]
 
diff --git a/requirements.txt b/requirements.txt
index c035f4f..5f1ccc6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 matplotlib
 numpy
 scipy
-pyqt
+PyQt5
 h5py
 pyqtgraph
 bsddb3
diff --git a/src/gui_qt/_py/basewindow.py b/src/gui_qt/_py/basewindow.py
index 40b2100..9574c57 100644
--- a/src/gui_qt/_py/basewindow.py
+++ b/src/gui_qt/_py/basewindow.py
@@ -1,10 +1,11 @@
 # -*- coding: utf-8 -*-
 
-# Form implementation generated from reading ui file 'resources/_ui/basewindow.ui'
+# Form implementation generated from reading ui file '/autohome/dominik/nmreval/src/resources/_ui/basewindow.ui'
 #
-# Created by: PyQt5 UI code generator 5.12.3
+# Created by: PyQt5 UI code generator 5.15.4
 #
-# WARNING! All changes made in this file will be lost!
+# WARNING: Any manual changes made to this file will be lost when pyuic5 is
+# run again.  Do not edit this file unless you know what you are doing.
 
 
 from PyQt5 import QtCore, QtGui, QtWidgets
@@ -13,7 +14,7 @@ from PyQt5 import QtCore, QtGui, QtWidgets
 class Ui_BaseWindow(object):
     def setupUi(self, BaseWindow):
         BaseWindow.setObjectName("BaseWindow")
-        BaseWindow.resize(1388, 735)
+        BaseWindow.resize(1386, 827)
         icon = QtGui.QIcon()
         icon.addPixmap(QtGui.QPixmap(":/logo.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
         BaseWindow.setWindowIcon(icon)
@@ -63,12 +64,18 @@ class Ui_BaseWindow(object):
         icon5 = QtGui.QIcon()
         icon5.addPixmap(QtGui.QPixmap(":/eval_t1_dock"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
         self.tabWidget.addTab(self.t1tauwidget, icon5, "")
+        self.drawingswidget = DrawingsWidget()
+        self.drawingswidget.setObjectName("drawingswidget")
+        self.tabWidget.addTab(self.drawingswidget, "")
+        self.integralwidget = IntegralWidget()
+        self.integralwidget.setObjectName("integralwidget")
+        self.tabWidget.addTab(self.integralwidget, "")
         self.area = QtWidgets.QMdiArea(self.splitter)
         self.area.setObjectName("area")
         self.horizontalLayout.addWidget(self.splitter)
         BaseWindow.setCentralWidget(self.centralwidget)
         self.menubar = QtWidgets.QMenuBar(BaseWindow)
-        self.menubar.setGeometry(QtCore.QRect(0, 0, 1388, 30))
+        self.menubar.setGeometry(QtCore.QRect(0, 0, 1386, 30))
         self.menubar.setObjectName("menubar")
         self.menuFile = QtWidgets.QMenu(self.menubar)
         self.menuFile.setObjectName("menuFile")
@@ -359,6 +366,8 @@ class Ui_BaseWindow(object):
         self.actionUpdate.setObjectName("actionUpdate")
         self.actionMine = QtWidgets.QAction(BaseWindow)
         self.actionMine.setObjectName("actionMine")
+        self.action_draw_object = QtWidgets.QAction(BaseWindow)
+        self.action_draw_object.setObjectName("action_draw_object")
         self.menuSave.addAction(self.actionSave)
         self.menuSave.addAction(self.actionExportGraphic)
         self.menuSave.addAction(self.action_save_fit_parameter)
@@ -434,6 +443,8 @@ class Ui_BaseWindow(object):
         self.menuWindow.addAction(self.menuView.menuAction())
         self.menuWindow.addSeparator()
         self.menuWindow.addAction(self.actionRefresh)
+        self.menuWindow.addSeparator()
+        self.menuWindow.addAction(self.action_draw_object)
         self.menuNMR.addAction(self.t1action)
         self.menuNMR.addAction(self.actionCalculateT1)
         self.menuNMR.addAction(self.action_coup_calc)
@@ -492,6 +503,8 @@ class Ui_BaseWindow(object):
         self.tabWidget.setTabText(self.tabWidget.indexOf(self.editsignalwidget), _translate("BaseWindow", "Signals"))
         self.tabWidget.setTabText(self.tabWidget.indexOf(self.ptsselectwidget), _translate("BaseWindow", "Pick points"))
         self.tabWidget.setTabText(self.tabWidget.indexOf(self.t1tauwidget), _translate("BaseWindow", "SLR"))
+        self.tabWidget.setTabText(self.tabWidget.indexOf(self.drawingswidget), _translate("BaseWindow", "Drawings"))
+        self.tabWidget.setTabText(self.tabWidget.indexOf(self.integralwidget), _translate("BaseWindow", "Integrate"))
         self.menuFile.setTitle(_translate("BaseWindow", "&File"))
         self.menuSave.setTitle(_translate("BaseWindow", "&Save..."))
         self.menuData.setTitle(_translate("BaseWindow", "&Data"))
@@ -605,9 +618,12 @@ class Ui_BaseWindow(object):
         self.actionTetris.setText(_translate("BaseWindow", "Not Tetris"))
         self.actionUpdate.setText(_translate("BaseWindow", "Look for updates"))
         self.actionMine.setText(_translate("BaseWindow", "Mine"))
+        self.action_draw_object.setText(_translate("BaseWindow", "Draw objects..."))
 from ..data.datawidget.datawidget import DataWidget
+from ..data.integral_widget import IntegralWidget
 from ..data.point_select import PointSelectWidget
 from ..data.signaledit.editsignalwidget import EditSignalWidget
 from ..data.valueeditwidget import ValueEditWidget
 from ..fit.fitwindow import QFitDialog
+from ..graphs.drawings import DrawingsWidget
 from ..nmr.t1widget import QT1Widget
diff --git a/src/gui_qt/_py/guidelinewidget.py b/src/gui_qt/_py/guidelinewidget.py
index a69a325..10df080 100644
--- a/src/gui_qt/_py/guidelinewidget.py
+++ b/src/gui_qt/_py/guidelinewidget.py
@@ -1,10 +1,11 @@
 # -*- coding: utf-8 -*-
 
-# Form implementation generated from reading ui file 'resources/_ui/guidelinewidget.ui'
+# Form implementation generated from reading ui file '/autohome/dominik/nmreval/src/resources/_ui/guidelinewidget.ui'
 #
-# Created by: PyQt5 UI code generator 5.12.3
+# Created by: PyQt5 UI code generator 5.15.4
 #
-# WARNING! All changes made in this file will be lost!
+# WARNING: Any manual changes made to this file will be lost when pyuic5 is
+# run again.  Do not edit this file unless you know what you are doing.
 
 
 from PyQt5 import QtCore, QtGui, QtWidgets
@@ -13,109 +14,173 @@ from PyQt5 import QtCore, QtGui, QtWidgets
 class Ui_Form(object):
     def setupUi(self, Form):
         Form.setObjectName("Form")
-        Form.resize(431, 799)
-        self.gridLayout_2 = QtWidgets.QGridLayout(Form)
-        self.gridLayout_2.setContentsMargins(3, 3, 3, 3)
-        self.gridLayout_2.setSpacing(3)
-        self.gridLayout_2.setObjectName("gridLayout_2")
-        self.mode_comboBox = QtWidgets.QComboBox(Form)
+        Form.resize(459, 830)
+        self.verticalLayout_2 = QtWidgets.QVBoxLayout(Form)
+        self.verticalLayout_2.setObjectName("verticalLayout_2")
+        self.graph_comboBox = QtWidgets.QComboBox(Form)
+        self.graph_comboBox.setObjectName("graph_comboBox")
+        self.verticalLayout_2.addWidget(self.graph_comboBox)
+        self.listWidget_2 = QtWidgets.QListWidget(Form)
+        self.listWidget_2.setObjectName("listWidget_2")
+        self.verticalLayout_2.addWidget(self.listWidget_2)
+        self.horizontalLayout = QtWidgets.QHBoxLayout()
+        self.horizontalLayout.setObjectName("horizontalLayout")
+        self.pushButton = QtWidgets.QPushButton(Form)
+        self.pushButton.setObjectName("pushButton")
+        self.horizontalLayout.addWidget(self.pushButton)
+        self.pushButton_2 = QtWidgets.QPushButton(Form)
+        self.pushButton_2.setObjectName("pushButton_2")
+        self.horizontalLayout.addWidget(self.pushButton_2)
+        self.pushButton_3 = QtWidgets.QPushButton(Form)
+        self.pushButton_3.setObjectName("pushButton_3")
+        self.horizontalLayout.addWidget(self.pushButton_3)
+        self.verticalLayout_2.addLayout(self.horizontalLayout)
+        self.frame = QtWidgets.QFrame(Form)
+        self.frame.setFrameShape(QtWidgets.QFrame.StyledPanel)
+        self.frame.setFrameShadow(QtWidgets.QFrame.Raised)
+        self.frame.setObjectName("frame")
+        self.formLayout = QtWidgets.QFormLayout(self.frame)
+        self.formLayout.setObjectName("formLayout")
+        self.mode_comboBox = QtWidgets.QComboBox(self.frame)
         self.mode_comboBox.setObjectName("mode_comboBox")
         self.mode_comboBox.addItem("")
         self.mode_comboBox.addItem("")
-        self.gridLayout_2.addWidget(self.mode_comboBox, 2, 0, 1, 2)
-        self.graph_comboBox = QtWidgets.QComboBox(Form)
-        self.graph_comboBox.setObjectName("graph_comboBox")
-        self.gridLayout_2.addWidget(self.graph_comboBox, 0, 0, 1, 2)
-        self.horizontalLayout_2 = QtWidgets.QHBoxLayout()
-        self.horizontalLayout_2.setObjectName("horizontalLayout_2")
-        self.diagonal_widget = QtWidgets.QWidget(Form)
-        self.diagonal_widget.setObjectName("diagonal_widget")
-        self.horizontalLayout_4 = QtWidgets.QHBoxLayout(self.diagonal_widget)
-        self.horizontalLayout_4.setContentsMargins(0, 0, 0, 0)
-        self.horizontalLayout_4.setObjectName("horizontalLayout_4")
-        self.horizontalLayout_2.addWidget(self.diagonal_widget)
-        self.vh_widget = QtWidgets.QWidget(Form)
-        self.vh_widget.setObjectName("vh_widget")
-        self.horizontalLayout = QtWidgets.QHBoxLayout(self.vh_widget)
-        self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
-        self.horizontalLayout.setObjectName("horizontalLayout")
-        self.label = QtWidgets.QLabel(self.vh_widget)
-        self.label.setObjectName("label")
-        self.horizontalLayout.addWidget(self.label)
-        self.vh_pos_lineEdit = QtWidgets.QLineEdit(self.vh_widget)
-        self.vh_pos_lineEdit.setObjectName("vh_pos_lineEdit")
-        self.horizontalLayout.addWidget(self.vh_pos_lineEdit)
-        self.horizontalLayout_2.addWidget(self.vh_widget)
-        self.drag_checkBox = QtWidgets.QCheckBox(Form)
-        self.drag_checkBox.setChecked(True)
-        self.drag_checkBox.setObjectName("drag_checkBox")
-        self.horizontalLayout_2.addWidget(self.drag_checkBox)
-        self.gridLayout_2.addLayout(self.horizontalLayout_2, 3, 0, 1, 2)
-        self.color_comboBox = ColorListEditor(Form)
-        self.color_comboBox.setObjectName("color_comboBox")
-        self.gridLayout_2.addWidget(self.color_comboBox, 6, 1, 1, 1)
-        self.pushButton = QtWidgets.QPushButton(Form)
-        self.pushButton.setObjectName("pushButton")
-        self.gridLayout_2.addWidget(self.pushButton, 7, 0, 1, 2)
-        self.label_6 = QtWidgets.QLabel(Form)
+        self.mode_comboBox.addItem("")
+        self.mode_comboBox.addItem("")
+        self.formLayout.setWidget(0, QtWidgets.QFormLayout.FieldRole, self.mode_comboBox)
+        self.label_12 = QtWidgets.QLabel(self.frame)
+        self.label_12.setObjectName("label_12")
+        self.formLayout.setWidget(0, QtWidgets.QFormLayout.LabelRole, self.label_12)
+        self.label_6 = QtWidgets.QLabel(self.frame)
         self.label_6.setObjectName("label_6")
-        self.gridLayout_2.addWidget(self.label_6, 5, 0, 1, 1)
-        self.comment_lineEdit = QtWidgets.QLineEdit(Form)
+        self.formLayout.setWidget(1, QtWidgets.QFormLayout.LabelRole, self.label_6)
+        self.comment_lineEdit = QtWidgets.QLineEdit(self.frame)
         self.comment_lineEdit.setObjectName("comment_lineEdit")
-        self.gridLayout_2.addWidget(self.comment_lineEdit, 5, 1, 1, 1)
-        self.label_2 = QtWidgets.QLabel(Form)
+        self.formLayout.setWidget(1, QtWidgets.QFormLayout.FieldRole, self.comment_lineEdit)
+        self.label_2 = QtWidgets.QLabel(self.frame)
         self.label_2.setObjectName("label_2")
-        self.gridLayout_2.addWidget(self.label_2, 6, 0, 1, 1)
-        self.tableWidget = QtWidgets.QTableWidget(Form)
-        self.tableWidget.setSelectionMode(QtWidgets.QAbstractItemView.SingleSelection)
-        self.tableWidget.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
-        self.tableWidget.setColumnCount(2)
-        self.tableWidget.setObjectName("tableWidget")
-        self.tableWidget.setRowCount(0)
-        item = QtWidgets.QTableWidgetItem()
-        self.tableWidget.setHorizontalHeaderItem(0, item)
-        item = QtWidgets.QTableWidgetItem()
-        self.tableWidget.setHorizontalHeaderItem(1, item)
-        self.tableWidget.horizontalHeader().setVisible(True)
-        self.tableWidget.horizontalHeader().setStretchLastSection(True)
-        self.gridLayout_2.addWidget(self.tableWidget, 8, 0, 1, 2)
-        self.line = QtWidgets.QFrame(Form)
-        self.line.setFrameShape(QtWidgets.QFrame.HLine)
-        self.line.setFrameShadow(QtWidgets.QFrame.Sunken)
-        self.line.setObjectName("line")
-        self.gridLayout_2.addWidget(self.line, 1, 0, 1, 2)
-        self.line_2 = QtWidgets.QFrame(Form)
-        self.line_2.setFrameShape(QtWidgets.QFrame.HLine)
-        self.line_2.setFrameShadow(QtWidgets.QFrame.Sunken)
-        self.line_2.setObjectName("line_2")
-        self.gridLayout_2.addWidget(self.line_2, 4, 0, 1, 2)
-        self.label.setBuddy(self.vh_pos_lineEdit)
+        self.formLayout.setWidget(2, QtWidgets.QFormLayout.LabelRole, self.label_2)
+        self.color_comboBox = ColorListEditor(self.frame)
+        self.color_comboBox.setObjectName("color_comboBox")
+        self.formLayout.setWidget(2, QtWidgets.QFormLayout.FieldRole, self.color_comboBox)
+        self.stackedWidget = QtWidgets.QStackedWidget(self.frame)
+        self.stackedWidget.setObjectName("stackedWidget")
+        self.page = QtWidgets.QWidget()
+        self.page.setObjectName("page")
+        self.formLayout_2 = QtWidgets.QFormLayout(self.page)
+        self.formLayout_2.setObjectName("formLayout_2")
+        self.label_13 = QtWidgets.QLabel(self.page)
+        self.label_13.setObjectName("label_13")
+        self.formLayout_2.setWidget(0, QtWidgets.QFormLayout.LabelRole, self.label_13)
+        self.lineEdit_8 = QtWidgets.QLineEdit(self.page)
+        self.lineEdit_8.setObjectName("lineEdit_8")
+        self.formLayout_2.setWidget(0, QtWidgets.QFormLayout.FieldRole, self.lineEdit_8)
+        self.label = QtWidgets.QLabel(self.page)
+        self.label.setObjectName("label")
+        self.formLayout_2.setWidget(1, QtWidgets.QFormLayout.LabelRole, self.label)
+        self.infiniteline_angle_spinbox = QtWidgets.QSpinBox(self.page)
+        self.infiniteline_angle_spinbox.setWrapping(True)
+        self.infiniteline_angle_spinbox.setMaximum(179)
+        self.infiniteline_angle_spinbox.setObjectName("infiniteline_angle_spinbox")
+        self.formLayout_2.setWidget(1, QtWidgets.QFormLayout.FieldRole, self.infiniteline_angle_spinbox)
+        self.stackedWidget.addWidget(self.page)
+        self.page_2 = QtWidgets.QWidget()
+        self.page_2.setObjectName("page_2")
+        self.verticalLayout = QtWidgets.QVBoxLayout(self.page_2)
+        self.verticalLayout.setObjectName("verticalLayout")
+        self.listWidget = QtWidgets.QListWidget(self.page_2)
+        self.listWidget.setObjectName("listWidget")
+        self.verticalLayout.addWidget(self.listWidget)
+        self.stackedWidget.addWidget(self.page_2)
+        self.page_3 = QtWidgets.QWidget()
+        self.page_3.setObjectName("page_3")
+        self.formLayout_3 = QtWidgets.QFormLayout(self.page_3)
+        self.formLayout_3.setObjectName("formLayout_3")
+        self.label_5 = QtWidgets.QLabel(self.page_3)
+        self.label_5.setObjectName("label_5")
+        self.formLayout_3.setWidget(0, QtWidgets.QFormLayout.LabelRole, self.label_5)
+        self.lineEdit = QtWidgets.QLineEdit(self.page_3)
+        self.lineEdit.setObjectName("lineEdit")
+        self.formLayout_3.setWidget(0, QtWidgets.QFormLayout.FieldRole, self.lineEdit)
+        self.label_3 = QtWidgets.QLabel(self.page_3)
+        self.label_3.setObjectName("label_3")
+        self.formLayout_3.setWidget(1, QtWidgets.QFormLayout.LabelRole, self.label_3)
+        self.lineEdit_2 = QtWidgets.QLineEdit(self.page_3)
+        self.lineEdit_2.setObjectName("lineEdit_2")
+        self.formLayout_3.setWidget(1, QtWidgets.QFormLayout.FieldRole, self.lineEdit_2)
+        self.label_9 = QtWidgets.QLabel(self.page_3)
+        self.label_9.setObjectName("label_9")
+        self.formLayout_3.setWidget(2, QtWidgets.QFormLayout.LabelRole, self.label_9)
+        self.lineEdit_3 = QtWidgets.QLineEdit(self.page_3)
+        self.lineEdit_3.setObjectName("lineEdit_3")
+        self.formLayout_3.setWidget(2, QtWidgets.QFormLayout.FieldRole, self.lineEdit_3)
+        self.label_4 = QtWidgets.QLabel(self.page_3)
+        self.label_4.setObjectName("label_4")
+        self.formLayout_3.setWidget(3, QtWidgets.QFormLayout.LabelRole, self.label_4)
+        self.spinBox = QtWidgets.QSpinBox(self.page_3)
+        self.spinBox.setObjectName("spinBox")
+        self.formLayout_3.setWidget(3, QtWidgets.QFormLayout.FieldRole, self.spinBox)
+        self.stackedWidget.addWidget(self.page_3)
+        self.page_4 = QtWidgets.QWidget()
+        self.page_4.setObjectName("page_4")
+        self.formLayout_4 = QtWidgets.QFormLayout(self.page_4)
+        self.formLayout_4.setObjectName("formLayout_4")
+        self.label_7 = QtWidgets.QLabel(self.page_4)
+        self.label_7.setObjectName("label_7")
+        self.formLayout_4.setWidget(0, QtWidgets.QFormLayout.LabelRole, self.label_7)
+        self.lineEdit_4 = QtWidgets.QLineEdit(self.page_4)
+        self.lineEdit_4.setObjectName("lineEdit_4")
+        self.formLayout_4.setWidget(0, QtWidgets.QFormLayout.FieldRole, self.lineEdit_4)
+        self.label_8 = QtWidgets.QLabel(self.page_4)
+        self.label_8.setObjectName("label_8")
+        self.formLayout_4.setWidget(1, QtWidgets.QFormLayout.LabelRole, self.label_8)
+        self.lineEdit_5 = QtWidgets.QLineEdit(self.page_4)
+        self.lineEdit_5.setObjectName("lineEdit_5")
+        self.formLayout_4.setWidget(1, QtWidgets.QFormLayout.FieldRole, self.lineEdit_5)
+        self.label_10 = QtWidgets.QLabel(self.page_4)
+        self.label_10.setObjectName("label_10")
+        self.formLayout_4.setWidget(2, QtWidgets.QFormLayout.LabelRole, self.label_10)
+        self.lineEdit_6 = QtWidgets.QLineEdit(self.page_4)
+        self.lineEdit_6.setObjectName("lineEdit_6")
+        self.formLayout_4.setWidget(2, QtWidgets.QFormLayout.FieldRole, self.lineEdit_6)
+        self.label_11 = QtWidgets.QLabel(self.page_4)
+        self.label_11.setObjectName("label_11")
+        self.formLayout_4.setWidget(3, QtWidgets.QFormLayout.LabelRole, self.label_11)
+        self.lineEdit_7 = QtWidgets.QLineEdit(self.page_4)
+        self.lineEdit_7.setObjectName("lineEdit_7")
+        self.formLayout_4.setWidget(3, QtWidgets.QFormLayout.FieldRole, self.lineEdit_7)
+        self.stackedWidget.addWidget(self.page_4)
+        self.formLayout.setWidget(3, QtWidgets.QFormLayout.SpanningRole, self.stackedWidget)
+        self.verticalLayout_2.addWidget(self.frame)
         self.label_6.setBuddy(self.comment_lineEdit)
         self.label_2.setBuddy(self.color_comboBox)
 
         self.retranslateUi(Form)
+        self.stackedWidget.setCurrentIndex(3)
         QtCore.QMetaObject.connectSlotsByName(Form)
-        Form.setTabOrder(self.graph_comboBox, self.mode_comboBox)
-        Form.setTabOrder(self.mode_comboBox, self.vh_pos_lineEdit)
-        Form.setTabOrder(self.vh_pos_lineEdit, self.drag_checkBox)
-        Form.setTabOrder(self.drag_checkBox, self.comment_lineEdit)
-        Form.setTabOrder(self.comment_lineEdit, self.color_comboBox)
-        Form.setTabOrder(self.color_comboBox, self.pushButton)
-        Form.setTabOrder(self.pushButton, self.tableWidget)
 
     def retranslateUi(self, Form):
         _translate = QtCore.QCoreApplication.translate
         Form.setWindowTitle(_translate("Form", "Form"))
-        self.mode_comboBox.setItemText(0, _translate("Form", "Vertical"))
-        self.mode_comboBox.setItemText(1, _translate("Form", "Horizontal"))
-        self.label.setText(_translate("Form", "Position"))
-        self.vh_pos_lineEdit.setText(_translate("Form", "0"))
-        self.drag_checkBox.setText(_translate("Form", "Drag enabled"))
-        self.pushButton.setText(_translate("Form", "Create line"))
+        self.pushButton.setText(_translate("Form", "New object"))
+        self.pushButton_2.setText(_translate("Form", "Edit"))
+        self.pushButton_3.setText(_translate("Form", "Delete"))
+        self.mode_comboBox.setItemText(0, _translate("Form", "Infinite Line"))
+        self.mode_comboBox.setItemText(1, _translate("Form", "Multiple points"))
+        self.mode_comboBox.setItemText(2, _translate("Form", "Rectangle"))
+        self.mode_comboBox.setItemText(3, _translate("Form", "Ellipse"))
+        self.label_12.setText(_translate("Form", "Type"))
         self.label_6.setText(_translate("Form", "Comment"))
         self.label_2.setText(_translate("Form", "Color"))
-        item = self.tableWidget.horizontalHeaderItem(0)
-        item.setText(_translate("Form", "Pos."))
-        item = self.tableWidget.horizontalHeaderItem(1)
-        item.setText(_translate("Form", "Comment"))
+        self.label_13.setText(_translate("Form", "Position"))
+        self.label.setText(_translate("Form", "Angle"))
+        self.infiniteline_angle_spinbox.setSuffix(_translate("Form", "°"))
+        self.label_5.setText(_translate("Form", "Lower left"))
+        self.label_3.setText(_translate("Form", "Width"))
+        self.label_9.setText(_translate("Form", "Height"))
+        self.label_4.setText(_translate("Form", "Angle"))
+        self.label_7.setText(_translate("Form", "Centre"))
+        self.label_8.setText(_translate("Form", "Axis"))
+        self.label_10.setText(_translate("Form", "Axis"))
+        self.label_11.setText(_translate("Form", "Angle"))
 from ..lib.delegates import ColorListEditor
diff --git a/src/gui_qt/_py/integral_widget.py b/src/gui_qt/_py/integral_widget.py
index 4f16d93..81ba165 100644
--- a/src/gui_qt/_py/integral_widget.py
+++ b/src/gui_qt/_py/integral_widget.py
@@ -1,10 +1,11 @@
 # -*- coding: utf-8 -*-
 
-# Form implementation generated from reading ui file 'resources/_ui/integral_widget.ui'
+# Form implementation generated from reading ui file '/autohome/dominik/nmreval/src/resources/_ui/integral_widget.ui'
 #
-# Created by: PyQt5 UI code generator 5.12.3
+# Created by: PyQt5 UI code generator 5.15.4
 #
-# WARNING! All changes made in this file will be lost!
+# WARNING: Any manual changes made to this file will be lost when pyuic5 is
+# run again.  Do not edit this file unless you know what you are doing.
 
 
 from PyQt5 import QtCore, QtGui, QtWidgets
@@ -49,5 +50,5 @@ class Ui_Form(object):
         _translate = QtCore.QCoreApplication.translate
         Form.setWindowTitle(_translate("Form", "Form"))
         self.label_2.setText(_translate("Form", "TextLabel"))
-        self.label.setText(_translate("Form", "Save integrals as dataset"))
+        self.label.setText(_translate("Form", "Save area  as datasets"))
         self.pushButton.setText(_translate("Form", "Apply"))
diff --git a/src/gui_qt/data/integral_widget.py b/src/gui_qt/data/integral_widget.py
index 19272bb..baeaa90 100644
--- a/src/gui_qt/data/integral_widget.py
+++ b/src/gui_qt/data/integral_widget.py
@@ -2,6 +2,10 @@ from itertools import cycle
 
 import pyqtgraph as pg
 from numpy import nanmax, nanmin, inf, argsort, where
+
+from nmreval.lib.colors import Tab10
+from ..lib.pg_objects import PlotItem, RegionItem
+
 try:
     # numpy > 1.19 renamed some integration functions
     from scipy.integrate import cumulative_trapezoid
@@ -13,31 +17,33 @@ from .._py.integral_widget import Ui_Form
 
 
 class IntegralWidget(QtWidgets.QWidget, Ui_Form):
-    colors = cycle(['red', 'green', 'blue', 'cyan', 'magenta',
-                    'darkRed', 'darkGreen', 'darkBlue', 'darkCyan', 'darkMagenta'])
+    colors = cycle(Tab10)
 
     requestData = QtCore.pyqtSignal(str)
     item_deleted = QtCore.pyqtSignal(pg.GraphicsObject)
-    newData = QtCore.pyqtSignal(str, list)
 
     def __init__(self, parent=None):
         super().__init__(parent=parent)
         self.setupUi(self)
 
         self.connected_figure = ''
+        self.management = None
+
         self.graph_shown = None
         self.shown_set = None
 
-        self._data = None
         self.ranges = []
         self.lines = []
+        self.areas = []
 
+        self._x = None
+        self._y = None
         self.max_area = 0
         self.max_y = inf
         self.min_y = -inf
 
     def __call__(self, graph_name, items):
-        self.label_2.setText(f'Connected to <b>{graph_name}</b>')
+        self.label_2.setText(f'Connected to {graph_name}\nChanging tab will remove all integration limits.')
 
         self.clear()
 
@@ -50,7 +56,7 @@ class IntegralWidget(QtWidgets.QWidget, Ui_Form):
         self.set_combobox.blockSignals(False)
 
         self.set_combobox.setCurrentIndex(0)
-        self.set_combobox.currentIndexChanged.emit(0)
+        self.change_set(0)
 
         return self
 
@@ -61,26 +67,29 @@ class IntegralWidget(QtWidgets.QWidget, Ui_Form):
             super().keyPressEvent(e)
 
     @QtCore.pyqtSlot(int, name='on_set_combobox_currentIndexChanged')
-    def change_set(self, idx: int):
-        key = self.set_combobox.itemData(idx)
-        self.requestData.emit(key)
+    def change_set(self, _: int):
+        # key = self.set_combobox.itemData(idx)
+        key = self.set_combobox.currentData()
 
-    def set_data(self, ptr):
-        self._data = ptr
+        self._data = self.management[key]
         self.max_y = nanmax(self._data.y.real)
         self.min_y = nanmin(self._data.y.real)
         for idx, rnge in enumerate(self.ranges):
             self._update_values(idx, rnge)
 
+
     def add(self, pos):
         x = pos[0]
-        self.ranges.append((x, x * 1.1))
+        self.ranges.append((x, x*1.1))
 
         c = next(IntegralWidget.colors)
-        qc = QtGui.QColor(c)
+        qc = QtGui.QColor(c.hex())
         qc.setAlpha(40)
-        region = pg.LinearRegionItem(values=[x, x*1.1], brush=QtGui.QBrush(qc), pen=pg.mkPen(QtGui.QColor(c)))
-        integral_plot = pg.PlotDataItem(x=[], y=[])
+        pen = pg.mkPen({f'color': c.rgb()})
+
+        region = RegionItem(values=[x, x*1.1], mode='mid', brush=QtGui.QBrush(qc), pen=pen)
+        integral_plot = PlotItem(x=[], y=[], pen=pen)
+
         region.sigRegionChanged.connect(self._update_integral)
 
         self.lines.append((region, integral_plot))
@@ -93,7 +102,7 @@ class IntegralWidget(QtWidgets.QWidget, Ui_Form):
         item = QtWidgets.QTreeWidgetItem()
         item.setText(0, f'Integral {len(self.ranges)}')
 
-        item.setForeground(0, QtGui.QBrush(QtGui.QColor(c)))
+        item.setForeground(0, QtGui.QBrush(QtGui.QColor(c.hex())))
 
         pts_i = self.ranges[-1]
         item_list = []
@@ -127,7 +136,8 @@ class IntegralWidget(QtWidgets.QWidget, Ui_Form):
 
     def _update_values(self, idx, new_range):
         self.ranges[idx] = new_range
-        area = self.calc_integral(idx, *new_range)
+
+        area = self.make_integral(idx, *new_range)
 
         item = self.treeWidget.topLevelItem(idx)
         item.child(0).setText(0, f'Start: {new_range[0]:.5g}')
@@ -157,18 +167,18 @@ class IntegralWidget(QtWidgets.QWidget, Ui_Form):
         scale = (self.max_y - self.min_y) / y_i[-1] * (area_i / max_value)
         integral_line.setData(x=x_i, y=y_i * scale)
 
-    def calc_integral(self, idx, x_min, x_max):
-        int_range = where((self._data.x >= x_min) & (self._data.x <= x_max))[0]
-        if len(int_range) > 1:
-            x_int = self._data.x[int_range]
-            y_int = self._data.y[int_range].real
-            order = argsort(x_int)
+    def make_integral(self, idx, x_min, x_max):
+        if self._data is None:
+            self.change_set(0)
 
-            integral = cumulative_trapezoid(y=y_int[order], x=x_int[order], initial=0)
-            scale = (self.max_y-self.min_y) / integral[-1]
-            self.lines[idx][1].setData(x=x_int[order], y=integral*scale + self.min_y)
+        integral = self._data.data.integrate(limits=(x_min, x_max), asarray=True)
 
-            return integral[-1]
+        if integral.size != 0:
+            area = integral[-1, 1]
+            scale = (self.max_y-self.min_y) / area
+            self.lines[idx][1].setData(x=integral[:, 0], y=integral[:, 1]*scale  + self.min_y)
+
+            return area
 
         else:
             self.lines[idx][1].setData(x=[], y=[])
@@ -179,24 +189,36 @@ class IntegralWidget(QtWidgets.QWidget, Ui_Form):
         for item in self.treeWidget.selectedItems():
             idx = root.indexOfChild(item)
 
-            self.ranges.pop(idx)
             self.item_deleted.emit(self.lines[idx][0])
             self.item_deleted.emit(self.lines[idx][1])
+
+            self.ranges.pop(idx)
             self.lines.pop(idx)
             self.areas.pop(idx)
+
             self.treeWidget.takeTopLevelItem(idx)
 
     @QtCore.pyqtSlot(name='on_pushButton_clicked')
     def convert_to_datasets(self):
-        set_id = self.set_combobox.currentData()
-        values = []
-        for i in range(len(self.ranges)):
-            x_i, y_i = self.lines[i][1].getData()
-            start_i, stop_i = self.ranges[i]
-            area_i = self.areas[i]
-            values.append((x_i, y_i, start_i, stop_i, area_i))
+        set_values = []
+        areas = []
 
-        self.newData.emit(set_id, values)
+        new_sets = True
+
+        for r in self.ranges:
+            area_i = []
+            for idx in range(self.set_combobox.count()):
+                set_id = self.set_combobox.itemData(idx)
+                d = self.management[set_id]
+                if new_sets:
+                    set_values.append(d.value)
+                integration = d.data.integrate(limits=r, asarray=True)
+                area_i.append(integration[-1, 1])
+
+            areas.append(area_i)
+            new_sets = False
+
+        self.management.integral_datasets(self.ranges, set_values, areas)
 
     def clear(self):
         self.connected_figure = ''
@@ -204,6 +226,7 @@ class IntegralWidget(QtWidgets.QWidget, Ui_Form):
         self.shown_set = None
 
         self._data = None
+        self.areas = []
         self.ranges = []
         self.lines = []
 
@@ -211,3 +234,6 @@ class IntegralWidget(QtWidgets.QWidget, Ui_Form):
         self.max_y = inf
         self.min_y = -inf
 
+        self.treeWidget.clear()
+
+
diff --git a/src/gui_qt/fit/fitfunction.py b/src/gui_qt/fit/fitfunction.py
index 9eab41f..f1c85fa 100644
--- a/src/gui_qt/fit/fitfunction.py
+++ b/src/gui_qt/fit/fitfunction.py
@@ -28,22 +28,9 @@ class QFunctionWidget(QtWidgets.QWidget, Ui_Form):
         self.setupUi(self)
 
         self._types = []
+        self.user_functions = {}
         self.functions = find_models(models)
-        try:
-            self.functions += find_models(config_paths() / 'usermodels.py')
-        except FileNotFoundError:
-            pass
-
-        for m in self.functions:
-            try:
-                m.type
-            except AttributeError:
-                m.type = 'Other'
-
-            if m.type not in self._types:
-                self._types.append(m.type)
-
-        self.typecomboBox.addItems(sorted(self._types))
+        self.read_and_load_functions()
 
         self.functree.treeChanged.connect(lambda: self.treeChanged.emit())
         self.functree.itemRemoved.connect(self.remove_function)
@@ -54,6 +41,44 @@ class QFunctionWidget(QtWidgets.QWidget, Ui_Form):
         for i, op_icon in enumerate(self.op_names):
             self.operator_combobox.setItemIcon(i, get_icon(op_icon))
 
+    def read_and_load_functions(self):
+        """
+        Reads user-defined fit functions from usermodels.py and adds them to list of fit function.
+        Previous class definitions are replaced.
+        """
+        user_defined = []
+        try:
+            user_defined = find_models(config_paths() / 'usermodels.py')
+        except FileNotFoundError:
+            pass
+
+        for model in user_defined:
+            name = model.__name__
+            if name not in self.user_functions:
+                self.functions.append(model)
+                self.user_functions[name] = model
+            else:
+                idx = self.functions.index(self.user_functions[name])
+                self.functions[idx] = model
+                self.user_functions[name] = model
+
+        self._types = []
+        for m in self.functions:
+            try:
+                m.type
+            except AttributeError:
+                m.type = 'Other'
+
+            if m.type not in self._types:
+                self._types.append(m.type)
+
+        self.typecomboBox.blockSignals(True)
+        self.typecomboBox.clear()
+        self.typecomboBox.addItems(sorted(self._types))
+        self.typecomboBox.blockSignals(False)
+
+        self.change_group(0)
+
     def __len__(self) -> int:
         num = 0
         iterator = QtWidgets.QTreeWidgetItemIterator(self.functree)
diff --git a/src/gui_qt/fit/fitwindow.py b/src/gui_qt/fit/fitwindow.py
index 3535f4c..bc5b650 100644
--- a/src/gui_qt/fit/fitwindow.py
+++ b/src/gui_qt/fit/fitwindow.py
@@ -61,6 +61,8 @@ class QFitDialog(QtWidgets.QWidget, Ui_FitDialog):
         self.functionwidget.showFunction.connect(self.show_function_parameter)
         self.functionwidget.itemRemoved.connect(self.remove_function)
 
+        self.read_and_load_functions = self.functionwidget.read_and_load_functions
+
     @QtCore.pyqtSlot(int, int)
     def add_function(self, function_idx: int, function_id: int):
         self.show_function_parameter(function_id, function_idx)
diff --git a/src/gui_qt/graphs/guide_lines.py b/src/gui_qt/graphs/drawings.py
similarity index 90%
rename from src/gui_qt/graphs/guide_lines.py
rename to src/gui_qt/graphs/drawings.py
index b4b95fc..cd62db4 100644
--- a/src/gui_qt/graphs/guide_lines.py
+++ b/src/gui_qt/graphs/drawings.py
@@ -1,18 +1,31 @@
-from pyqtgraph import InfiniteLine
-
-from ..Qt import QtWidgets, QtCore, QtGui
+from ..Qt import QtWidgets, QtCore
 from .._py.guidelinewidget import Ui_Form
-from ..lib.pg_objects import LogInfiniteLine
 
 
-class LineWidget(QtWidgets.QWidget, Ui_Form):
-    line_created = QtCore.pyqtSignal(object, str)
-    line_deleted = QtCore.pyqtSignal(object, str)
+class DrawingsWidget(QtWidgets.QWidget, Ui_Form):
 
     def __init__(self, parent=None):
         super().__init__(parent=parent)
+
+        self.connected_figure=None
+
         self.setupUi(self)
 
+    def __call__(self, graphs):
+        for gid, name in graphs:
+            self.graph_comboBox.addItem(name, userData=gid)
+
+    def clear(self):
+        self.graph_comboBox.clear()
+
+    @QtCore.pyqtSlot(int, name='on_mode_comboBox_currentIndexChanged')
+    def change_draw_type(self, idx: int):
+        self.stackedWidget.setCurrentIndex(idx)
+
+
+
+"""
+
         self.lines = {}
         self.comments = {}
 
@@ -145,3 +158,4 @@ class LineWidget(QtWidgets.QWidget, Ui_Form):
         pos = line.value()
         text_item = self.tableWidget.item(i, 0)
         text_item.setText(text_item.text()[:4]+f'{pos:.4g}')
+"""
\ No newline at end of file
diff --git a/src/gui_qt/graphs/graphwindow.py b/src/gui_qt/graphs/graphwindow.py
index de97254..8ae796e 100644
--- a/src/gui_qt/graphs/graphwindow.py
+++ b/src/gui_qt/graphs/graphwindow.py
@@ -605,7 +605,11 @@ class QGraphWindow(QtWidgets.QGraphicsView, Ui_GraphWindow):
                 dic['items'].append(item_dic)
 
         for item in self._external_items:
-            dic['items'].append(item.get_data_opts())
+            try:
+                dic['items'].append(item.get_data_opts())
+            except AttributeError:
+                print(f'{item} is missing "get_data_opts()"')
+                continue
             in_legend.append(False)
 
         dic['in_legend'] = in_legend
diff --git a/src/gui_qt/lib/pg_objects.py b/src/gui_qt/lib/pg_objects.py
index d352277..0b4cf0b 100644
--- a/src/gui_qt/lib/pg_objects.py
+++ b/src/gui_qt/lib/pg_objects.py
@@ -274,7 +274,6 @@ class PlotItem(PlotDataItem):
             self.scatter.hide()
 
     def set_symbol(self, symbol=None, size=None, color=None):
-        print(symbol, type(symbol), isinstance(symbol, SymbolStyle))
         if symbol is not None:
             if isinstance(symbol, int):
                 self.setSymbol(SymbolStyle(symbol).to_str())
diff --git a/src/gui_qt/main/mainwindow.py b/src/gui_qt/main/mainwindow.py
index ef860fc..4b7717b 100644
--- a/src/gui_qt/main/mainwindow.py
+++ b/src/gui_qt/main/mainwindow.py
@@ -110,6 +110,7 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
                                                       self.size(), QtWidgets.qApp.desktop().availableGeometry()))
 
         self.datawidget.management = self.management
+        self.integralwidget.management = self.management
 
         self.ac_group = QtWidgets.QActionGroup(self)
         self.ac_group.addAction(self.action_lm_fit)
@@ -121,6 +122,8 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
         self.ac_group2.addAction(self.action_x_range)
         self.ac_group2.addAction(self.action_custom_range)
 
+        self.action_draw_object.setVisible(False)
+
     def _init_signals(self):
         self.actionRedo = self.management.undostack.createRedoAction(self)
         icon = QtGui.QIcon.fromTheme("edit-redo")
@@ -142,9 +145,9 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
         self.t1action.triggered.connect(lambda: self._show_tab('t1_temp'))
         self.action_edit.triggered.connect(lambda: self._show_tab('signal'))
         self.actionPick_position.triggered.connect(lambda: self._show_tab('pick'))
-        self.actionIntegrate.triggered.connect(lambda: self._show_tab('integrate'))
+        self.actionIntegration.triggered.connect(lambda: self._show_tab('integrate'))
         self.action_FitWidget.triggered.connect(lambda: self._show_tab('fit'))
-        # self.action_draw_object.triggered.connect(lambda: self._show_tab('drawing'))
+        self.action_draw_object.triggered.connect(lambda: self._show_tab('drawing'))
 
         self.action_new_set.triggered.connect(self.management.create_empty)
 
@@ -462,7 +465,8 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
             'signal': (self.editsignalwidget, 'Signals'),
             'pick': (self.ptsselectwidget, 'Pick points'),
             'fit': (self.fit_dialog, 'Fit'),
-            # 'drawing': (self.drawingswidget, 'Draw'),
+            'drawing': (self.drawingswidget, 'Draw'),
+            'integrate': (self.integralwidget, 'Integrate'),
         }[mode]
 
         for idx in range(self.tabWidget.count()):
@@ -497,6 +501,8 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
         self._select_valuewidget(widget == self.valuewidget)
         pick_required, block_window = self._select_t1tauwidget(widget == self.t1tauwidget, pick_required, block_window)
         block_window = self._select_fitwidget(widget == self.fit_dialog, block_window)
+        self._select_drawingswidget(widget == self.drawingswidget)
+        pick_required = self._select_integralwidget(widget == self.integralwidget, pick_required, block_window)
 
         self._set_pick_block(pick_required, block_window)
 
@@ -529,9 +535,9 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
             if self.valuewidget.connected_figure is not None:
                 self.management.graphs[self.valuewidget.connected_figure].remove_external(self._values_plot)
 
-    def _select_integralwidget(self, onoff: bool, pick_required: bool):
+    def _select_integralwidget(self, onoff: bool, pick_required: bool, block_window: bool) -> tuple[bool, bool]:
         if self.current_graph_widget is None:
-            return pick_required
+            return pick_required, block_window
 
         if onoff:
             self.integralwidget(self.current_graph_widget.title,
@@ -539,6 +545,7 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
             self.integralwidget.item_deleted.connect(self.current_graph_widget.remove_external)
             self.integralwidget.connected_figure = self.management.current_graph
             pick_required = True
+            block_window = True
         else:
             if self.integralwidget.connected_figure:
                 g = self.management.graphs[self.integralwidget.connected_figure]
@@ -547,7 +554,7 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
                     g.remove_external(line[1])
             self.integralwidget.clear()
 
-        return pick_required
+        return pick_required, block_window
 
     def _select_t1tauwidget(self, onoff: bool, pick_required: bool, block_window: bool):
         if onoff:  # tau from t1
@@ -580,6 +587,13 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
 
         return pick_required, block_window
 
+    def _select_drawingswidget(self, onoff):
+        if onoff:
+            self.drawingswidget(self.management.graphs.list())
+            self.drawingswidget.connected_figure = self.management.current_graph
+        else:
+            self.drawingswidget.clear()
+
     @QtCore.pyqtSlot(str)
     def get_data(self, key: str):
         self.sender().set_data(self.management[key])
@@ -657,13 +671,14 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
         self.eval.exec()
 
     @QtCore.pyqtSlot(name='on_actionDerivation_triggered')
-    @QtCore.pyqtSlot(name='on_actionIntegration_triggered')
+    # @QtCore.pyqtSlot(name='on_actionIntegration_triggered')
     @QtCore.pyqtSlot(name='on_actionFilon_triggered')
     def int_diff_ft(self):
         sets = self.management.active_sets
-        mode = {self.actionIntegration: 'int',
-                self.actionDerivation: 'diff',
-                self.actionFilon: 'logft'}[self.sender()]
+        mode = {
+            # self.actionIntegration: 'int',
+            self.actionDerivation: 'diff',
+            self.actionFilon: 'logft'}[self.sender()]
 
         if sets:
             from ..math.integrate_derive import QDeriveIntegrate
@@ -803,6 +818,11 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
         elif w == self.t1tauwidget:
             self.t1tauwidget.t1min_picked(pos)
 
+        elif w == self.integralwidget:
+            region, integral_plot  = self.integralwidget.add(pos)
+            self.current_graph_widget.add_external(region)
+            self.current_graph_widget.add_external(integral_plot)
+
     def _select_fitwidget(self, onoff: bool, block_window: bool):
         if self.current_graph_widget is not None:
             pass
@@ -886,7 +906,7 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
             from ..lib.usermodeleditor import QUsermodelEditor
 
             self.editor = QUsermodelEditor(config_paths() / 'usermodels.py', parent=self)
-            self.editor.modelsChanged.connect(self.update_fitmodels)
+            self.editor.modelsChanged.connect(lambda: self.fit_dialog.read_and_load_functions())
             self.editor.setWindowModality(QtCore.Qt.ApplicationModal)
         self.editor.show()
 
@@ -900,9 +920,6 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
         s.valuesChanged.connect(self.management.shift_scale)
         s.show()
 
-    def update_fitmodels(self):
-        pass
-
     @staticmethod
     @QtCore.pyqtSlot(name='on_actionDocumentation_triggered')
     def open_doc():
diff --git a/src/gui_qt/main/management.py b/src/gui_qt/main/management.py
index bfbde4d..4eaa869 100644
--- a/src/gui_qt/main/management.py
+++ b/src/gui_qt/main/management.py
@@ -321,7 +321,7 @@ class UpperManagement(QtCore.QObject):
 
             self.newData.emit([self.add(joined)], self.current_graph)
 
-    def get_data(self, sid: str, xy_only=False):
+    def get_data(self, sid: str, xy_only: bool = False):
         """
         Return data for a given id.
         Return value is tuple of [x, y, y_err] and mask if xy_only is False, [x, y] if true.
@@ -930,6 +930,13 @@ class UpperManagement(QtCore.QObject):
 
         self.newData.emit(new_sets, kwargs['graph'])
 
+    def integral_datasets(self, ranges: list, x_vals: list, y_vals: np.ndarry):
+        new_sets = []
+        for range_i, y_val_i in zip(ranges, y_vals):
+            new_sets.append(self.add(Points(x=x_vals, y=y_val_i, name=f'{range_i[0]:.4g}-{range_i[1]:.4g}')))
+
+        self.newData.emit(new_sets, '')
+
     def bds_deriv(self):
         new_sets = []
 
diff --git a/src/nmreval/data/points.py b/src/nmreval/data/points.py
index 31c8f13..f118a97 100644
--- a/src/nmreval/data/points.py
+++ b/src/nmreval/data/points.py
@@ -390,20 +390,25 @@ class Points:
 
         return self
 
-    def integrate(self, log: bool = False, limits: tuple[float, float] = None) -> PointLike:
+    def integrate(self, log: bool = False, limits: tuple[float, float] = None, asarray: bool = False) -> PointLike:
         new_data = self.copy()
 
         if limits != (None, None):
             new_data.cut(*limits)
 
+        new_data.sort()
+
         if log:
             new_data.y = cumulative_trapezoid(y=new_data.y, x=np.log(new_data.x), initial=0)
         else:
             new_data.y = cumulative_trapezoid(y=new_data.y, x=new_data.x, initial=0)
 
-        return new_data
+        if asarray:
+            return new_data.toarray(err=False)
+        else:
+            return new_data
 
-    def diff(self, log: bool = False, limits: tuple[float, float] = None) -> PointLike:
+    def diff(self, log: bool = False, limits: tuple[float, float] = None, asarray: bool = False) -> PointLike:
         """
 
         Calculate first derivate :math:`dy/dx` or :math:`dy/d(\ln x)`.
@@ -430,7 +435,10 @@ class Points:
 
         new_data.remove(np.argwhere(np.isnan(new_data.y)))
 
-        return new_data
+        if asarray:
+            return new_data.toarray()
+        else:
+            return new_data
 
     def magnitude(self) -> PointLike:
         new_data = self.copy()
diff --git a/src/resources/_ui/basewindow.ui b/src/resources/_ui/basewindow.ui
index 431cc71..12ea544 100644
--- a/src/resources/_ui/basewindow.ui
+++ b/src/resources/_ui/basewindow.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>1388</width>
-    <height>735</height>
+    <width>1386</width>
+    <height>827</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -114,6 +114,16 @@
          <string>SLR</string>
         </attribute>
        </widget>
+       <widget class="DrawingsWidget" name="drawingswidget">
+        <attribute name="title">
+         <string>Drawings</string>
+        </attribute>
+       </widget>
+       <widget class="IntegralWidget" name="integralwidget">
+        <attribute name="title">
+         <string>Integrate</string>
+        </attribute>
+       </widget>
       </widget>
       <widget class="QMdiArea" name="area"/>
      </widget>
@@ -125,7 +135,7 @@
     <rect>
      <x>0</x>
      <y>0</y>
-     <width>1388</width>
+     <width>1386</width>
      <height>30</height>
     </rect>
    </property>
@@ -274,6 +284,8 @@
     <addaction name="menuView"/>
     <addaction name="separator"/>
     <addaction name="actionRefresh"/>
+    <addaction name="separator"/>
+    <addaction name="action_draw_object"/>
    </widget>
    <widget class="QMenu" name="menuNMR">
     <property name="title">
@@ -999,6 +1011,11 @@
     <string>Mine</string>
    </property>
   </action>
+  <action name="action_draw_object">
+   <property name="text">
+    <string>Draw objects...</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>
@@ -1037,6 +1054,18 @@
    <header>..fit.fitwindow</header>
    <container>1</container>
   </customwidget>
+  <customwidget>
+   <class>DrawingsWidget</class>
+   <extends>QWidget</extends>
+   <header>..graphs.drawings</header>
+   <container>1</container>
+  </customwidget>
+  <customwidget>
+   <class>IntegralWidget</class>
+   <extends>QWidget</extends>
+   <header>..data.integral_widget</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <resources/>
  <connections>
diff --git a/src/resources/_ui/guidelinewidget.ui b/src/resources/_ui/guidelinewidget.ui
index 85d5d6b..f302336 100644
--- a/src/resources/_ui/guidelinewidget.ui
+++ b/src/resources/_ui/guidelinewidget.ui
@@ -6,187 +6,248 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>431</width>
-    <height>799</height>
+    <width>459</width>
+    <height>830</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Form</string>
   </property>
-  <layout class="QGridLayout" name="gridLayout_2">
-   <property name="leftMargin">
-    <number>3</number>
-   </property>
-   <property name="topMargin">
-    <number>3</number>
-   </property>
-   <property name="rightMargin">
-    <number>3</number>
-   </property>
-   <property name="bottomMargin">
-    <number>3</number>
-   </property>
-   <property name="spacing">
-    <number>3</number>
-   </property>
-   <item row="2" column="0" colspan="2">
-    <widget class="QComboBox" name="mode_comboBox">
-     <item>
-      <property name="text">
-       <string>Vertical</string>
-      </property>
-     </item>
-     <item>
-      <property name="text">
-       <string>Horizontal</string>
-      </property>
-     </item>
-    </widget>
-   </item>
-   <item row="0" column="0" colspan="2">
+  <layout class="QVBoxLayout" name="verticalLayout_2">
+   <item>
     <widget class="QComboBox" name="graph_comboBox"/>
    </item>
-   <item row="3" column="0" colspan="2">
-    <layout class="QHBoxLayout" name="horizontalLayout_2">
+   <item>
+    <widget class="QListWidget" name="listWidget_2"/>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
      <item>
-      <widget class="QWidget" name="diagonal_widget" native="true">
-       <layout class="QHBoxLayout" name="horizontalLayout_4">
-        <property name="leftMargin">
-         <number>0</number>
-        </property>
-        <property name="topMargin">
-         <number>0</number>
-        </property>
-        <property name="rightMargin">
-         <number>0</number>
-        </property>
-        <property name="bottomMargin">
-         <number>0</number>
-        </property>
-       </layout>
-      </widget>
-     </item>
-     <item>
-      <widget class="QWidget" name="vh_widget" native="true">
-       <layout class="QHBoxLayout" name="horizontalLayout">
-        <property name="leftMargin">
-         <number>0</number>
-        </property>
-        <property name="topMargin">
-         <number>0</number>
-        </property>
-        <property name="rightMargin">
-         <number>0</number>
-        </property>
-        <property name="bottomMargin">
-         <number>0</number>
-        </property>
-        <item>
-         <widget class="QLabel" name="label">
-          <property name="text">
-           <string>Position</string>
-          </property>
-          <property name="buddy">
-           <cstring>vh_pos_lineEdit</cstring>
-          </property>
-         </widget>
-        </item>
-        <item>
-         <widget class="QLineEdit" name="vh_pos_lineEdit">
-          <property name="text">
-           <string>0</string>
-          </property>
-         </widget>
-        </item>
-       </layout>
-      </widget>
-     </item>
-     <item>
-      <widget class="QCheckBox" name="drag_checkBox">
+      <widget class="QPushButton" name="pushButton">
        <property name="text">
-        <string>Drag enabled</string>
+        <string>New object</string>
        </property>
-       <property name="checked">
-        <bool>true</bool>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton_2">
+       <property name="text">
+        <string>Edit</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton_3">
+       <property name="text">
+        <string>Delete</string>
        </property>
       </widget>
      </item>
     </layout>
    </item>
-   <item row="6" column="1">
-    <widget class="ColorListEditor" name="color_comboBox"/>
-   </item>
-   <item row="7" column="0" colspan="2">
-    <widget class="QPushButton" name="pushButton">
-     <property name="text">
-      <string>Create line</string>
+   <item>
+    <widget class="QFrame" name="frame">
+     <property name="frameShape">
+      <enum>QFrame::StyledPanel</enum>
      </property>
-    </widget>
-   </item>
-   <item row="5" column="0">
-    <widget class="QLabel" name="label_6">
-     <property name="text">
-      <string>Comment</string>
-     </property>
-     <property name="buddy">
-      <cstring>comment_lineEdit</cstring>
-     </property>
-    </widget>
-   </item>
-   <item row="5" column="1">
-    <widget class="QLineEdit" name="comment_lineEdit"/>
-   </item>
-   <item row="6" column="0">
-    <widget class="QLabel" name="label_2">
-     <property name="text">
-      <string>Color</string>
-     </property>
-     <property name="buddy">
-      <cstring>color_comboBox</cstring>
-     </property>
-    </widget>
-   </item>
-   <item row="8" column="0" colspan="2">
-    <widget class="QTableWidget" name="tableWidget">
-     <property name="selectionMode">
-      <enum>QAbstractItemView::SingleSelection</enum>
-     </property>
-     <property name="selectionBehavior">
-      <enum>QAbstractItemView::SelectRows</enum>
-     </property>
-     <property name="columnCount">
-      <number>2</number>
-     </property>
-     <attribute name="horizontalHeaderVisible">
-      <bool>true</bool>
-     </attribute>
-     <attribute name="horizontalHeaderStretchLastSection">
-      <bool>true</bool>
-     </attribute>
-     <column>
-      <property name="text">
-       <string>Pos.</string>
-      </property>
-     </column>
-     <column>
-      <property name="text">
-       <string>Comment</string>
-      </property>
-     </column>
-    </widget>
-   </item>
-   <item row="1" column="0" colspan="2">
-    <widget class="Line" name="line">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
-     </property>
-    </widget>
-   </item>
-   <item row="4" column="0" colspan="2">
-    <widget class="Line" name="line_2">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
+     <property name="frameShadow">
+      <enum>QFrame::Raised</enum>
      </property>
+     <layout class="QFormLayout" name="formLayout">
+      <item row="0" column="1">
+       <widget class="QComboBox" name="mode_comboBox">
+        <item>
+         <property name="text">
+          <string>Infinite Line</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>Multiple points</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>Rectangle</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>Ellipse</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QLabel" name="label_12">
+        <property name="text">
+         <string>Type</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="label_6">
+        <property name="text">
+         <string>Comment</string>
+        </property>
+        <property name="buddy">
+         <cstring>comment_lineEdit</cstring>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLineEdit" name="comment_lineEdit"/>
+      </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="label_2">
+        <property name="text">
+         <string>Color</string>
+        </property>
+        <property name="buddy">
+         <cstring>color_comboBox</cstring>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="ColorListEditor" name="color_comboBox"/>
+      </item>
+      <item row="3" column="0" colspan="2">
+       <widget class="QStackedWidget" name="stackedWidget">
+        <property name="currentIndex">
+         <number>3</number>
+        </property>
+        <widget class="QWidget" name="page">
+         <layout class="QFormLayout" name="formLayout_2">
+          <item row="0" column="0">
+           <widget class="QLabel" name="label_13">
+            <property name="text">
+             <string>Position</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="1">
+           <widget class="QLineEdit" name="lineEdit_8"/>
+          </item>
+          <item row="1" column="0">
+           <widget class="QLabel" name="label">
+            <property name="text">
+             <string>Angle</string>
+            </property>
+           </widget>
+          </item>
+          <item row="1" column="1">
+           <widget class="QSpinBox" name="infiniteline_angle_spinbox">
+            <property name="wrapping">
+             <bool>true</bool>
+            </property>
+            <property name="suffix">
+             <string>°</string>
+            </property>
+            <property name="maximum">
+             <number>179</number>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+        <widget class="QWidget" name="page_2">
+         <layout class="QVBoxLayout" name="verticalLayout">
+          <item>
+           <widget class="QListWidget" name="listWidget"/>
+          </item>
+         </layout>
+        </widget>
+        <widget class="QWidget" name="page_3">
+         <layout class="QFormLayout" name="formLayout_3">
+          <item row="0" column="0">
+           <widget class="QLabel" name="label_5">
+            <property name="text">
+             <string>Lower left</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="1">
+           <widget class="QLineEdit" name="lineEdit"/>
+          </item>
+          <item row="1" column="0">
+           <widget class="QLabel" name="label_3">
+            <property name="text">
+             <string>Width</string>
+            </property>
+           </widget>
+          </item>
+          <item row="1" column="1">
+           <widget class="QLineEdit" name="lineEdit_2"/>
+          </item>
+          <item row="2" column="0">
+           <widget class="QLabel" name="label_9">
+            <property name="text">
+             <string>Height</string>
+            </property>
+           </widget>
+          </item>
+          <item row="2" column="1">
+           <widget class="QLineEdit" name="lineEdit_3"/>
+          </item>
+          <item row="3" column="0">
+           <widget class="QLabel" name="label_4">
+            <property name="text">
+             <string>Angle</string>
+            </property>
+           </widget>
+          </item>
+          <item row="3" column="1">
+           <widget class="QSpinBox" name="spinBox"/>
+          </item>
+         </layout>
+        </widget>
+        <widget class="QWidget" name="page_4">
+         <layout class="QFormLayout" name="formLayout_4">
+          <item row="0" column="0">
+           <widget class="QLabel" name="label_7">
+            <property name="text">
+             <string>Centre</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="1">
+           <widget class="QLineEdit" name="lineEdit_4"/>
+          </item>
+          <item row="1" column="0">
+           <widget class="QLabel" name="label_8">
+            <property name="text">
+             <string>Axis</string>
+            </property>
+           </widget>
+          </item>
+          <item row="1" column="1">
+           <widget class="QLineEdit" name="lineEdit_5"/>
+          </item>
+          <item row="2" column="0">
+           <widget class="QLabel" name="label_10">
+            <property name="text">
+             <string>Axis</string>
+            </property>
+           </widget>
+          </item>
+          <item row="2" column="1">
+           <widget class="QLineEdit" name="lineEdit_6"/>
+          </item>
+          <item row="3" column="0">
+           <widget class="QLabel" name="label_11">
+            <property name="text">
+             <string>Angle</string>
+            </property>
+           </widget>
+          </item>
+          <item row="3" column="1">
+           <widget class="QLineEdit" name="lineEdit_7"/>
+          </item>
+         </layout>
+        </widget>
+       </widget>
+      </item>
+     </layout>
     </widget>
    </item>
   </layout>
@@ -198,16 +259,9 @@
    <header>..lib.delegates</header>
   </customwidget>
  </customwidgets>
- <tabstops>
-  <tabstop>graph_comboBox</tabstop>
-  <tabstop>mode_comboBox</tabstop>
-  <tabstop>vh_pos_lineEdit</tabstop>
-  <tabstop>drag_checkBox</tabstop>
-  <tabstop>comment_lineEdit</tabstop>
-  <tabstop>color_comboBox</tabstop>
-  <tabstop>pushButton</tabstop>
-  <tabstop>tableWidget</tabstop>
- </tabstops>
  <resources/>
  <connections/>
+ <buttongroups>
+  <buttongroup name="buttonGroup"/>
+ </buttongroups>
 </ui>
diff --git a/src/resources/_ui/integral_widget.ui b/src/resources/_ui/integral_widget.ui
index 70c78ed..9569a7e 100644
--- a/src/resources/_ui/integral_widget.ui
+++ b/src/resources/_ui/integral_widget.ui
@@ -65,7 +65,7 @@
      <item>
       <widget class="QLabel" name="label">
        <property name="text">
-        <string>Save integrals as dataset</string>
+        <string>Save area  as datasets</string>
        </property>
       </widget>
      </item>