diff --git a/src/gui_qt/_py/asciidialog.py b/src/gui_qt/_py/asciidialog.py
index 66ceccf..feac8f5 100644
--- a/src/gui_qt/_py/asciidialog.py
+++ b/src/gui_qt/_py/asciidialog.py
@@ -2,7 +2,7 @@
 
 # Form implementation generated from reading ui file 'src/resources/_ui/asciidialog.ui'
 #
-# Created by: PyQt5 UI code generator 5.15.7
+# Created by: PyQt5 UI code generator 5.15.9
 #
 # 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.
@@ -28,92 +28,25 @@ class Ui_ascii_reader(object):
         self.header_widget.setObjectName("header_widget")
         self.verticalLayout_3.addWidget(self.header_widget)
         self.groupBox = QtWidgets.QGroupBox(self.tabWidgetPage1)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Maximum)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.groupBox.sizePolicy().hasHeightForWidth())
+        self.groupBox.setSizePolicy(sizePolicy)
         self.groupBox.setObjectName("groupBox")
-        self.gridLayout = QtWidgets.QGridLayout(self.groupBox)
-        self.gridLayout.setContentsMargins(3, 3, 3, 3)
-        self.gridLayout.setHorizontalSpacing(9)
-        self.gridLayout.setObjectName("gridLayout")
-        self.FID_radioButton = QtWidgets.QRadioButton(self.groupBox)
-        self.FID_radioButton.setAutoExclusive(True)
-        self.FID_radioButton.setObjectName("FID_radioButton")
-        self.buttonGroup = QtWidgets.QButtonGroup(ascii_reader)
-        self.buttonGroup.setObjectName("buttonGroup")
-        self.buttonGroup.addButton(self.FID_radioButton)
-        self.gridLayout.addWidget(self.FID_radioButton, 2, 1, 1, 1)
-        self.x_lineedit = QtWidgets.QLineEdit(self.groupBox)
-        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Fixed)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.x_lineedit.sizePolicy().hasHeightForWidth())
-        self.x_lineedit.setSizePolicy(sizePolicy)
-        self.x_lineedit.setInputMethodHints(QtCore.Qt.ImhFormattedNumbersOnly|QtCore.Qt.ImhPreferNumbers)
-        self.x_lineedit.setObjectName("x_lineedit")
-        self.gridLayout.addWidget(self.x_lineedit, 1, 3, 1, 1)
-        self.y_label = QtWidgets.QLabel(self.groupBox)
-        self.y_label.setObjectName("y_label")
-        self.gridLayout.addWidget(self.y_label, 2, 2, 1, 1)
-        self.pts_radioButton = QtWidgets.QRadioButton(self.groupBox)
-        self.pts_radioButton.setChecked(True)
-        self.pts_radioButton.setAutoExclusive(True)
-        self.pts_radioButton.setObjectName("pts_radioButton")
-        self.buttonGroup.addButton(self.pts_radioButton)
-        self.gridLayout.addWidget(self.pts_radioButton, 1, 1, 1, 1)
-        self.deltay_lineEdit = QtWidgets.QLineEdit(self.groupBox)
-        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Fixed)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.deltay_lineEdit.sizePolicy().hasHeightForWidth())
-        self.deltay_lineEdit.setSizePolicy(sizePolicy)
-        self.deltay_lineEdit.setObjectName("deltay_lineEdit")
-        self.gridLayout.addWidget(self.deltay_lineEdit, 3, 3, 1, 1)
-        self.label_5 = QtWidgets.QLabel(self.groupBox)
-        self.label_5.setObjectName("label_5")
-        self.gridLayout.addWidget(self.label_5, 3, 2, 1, 1)
+        self.horizontalLayout_4 = QtWidgets.QHBoxLayout(self.groupBox)
+        self.horizontalLayout_4.setContentsMargins(3, 3, 3, 3)
+        self.horizontalLayout_4.setObjectName("horizontalLayout_4")
+        self.verticalLayout_6 = QtWidgets.QVBoxLayout()
+        self.verticalLayout_6.setObjectName("verticalLayout_6")
         self.column_checkBox = QtWidgets.QCheckBox(self.groupBox)
-        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.MinimumExpanding, QtWidgets.QSizePolicy.Fixed)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.MinimumExpanding, QtWidgets.QSizePolicy.Preferred)
         sizePolicy.setHorizontalStretch(0)
         sizePolicy.setVerticalStretch(0)
         sizePolicy.setHeightForWidth(self.column_checkBox.sizePolicy().hasHeightForWidth())
         self.column_checkBox.setSizePolicy(sizePolicy)
         self.column_checkBox.setObjectName("column_checkBox")
-        self.gridLayout.addWidget(self.column_checkBox, 0, 0, 1, 1)
-        self.label = QtWidgets.QLabel(self.groupBox)
-        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.MinimumExpanding, QtWidgets.QSizePolicy.Preferred)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.label.sizePolicy().hasHeightForWidth())
-        self.label.setSizePolicy(sizePolicy)
-        self.label.setObjectName("label")
-        self.gridLayout.addWidget(self.label, 0, 1, 1, 1)
-        self.label_7 = QtWidgets.QLabel(self.groupBox)
-        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.MinimumExpanding, QtWidgets.QSizePolicy.Preferred)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.label_7.sizePolicy().hasHeightForWidth())
-        self.label_7.setSizePolicy(sizePolicy)
-        self.label_7.setObjectName("label_7")
-        self.gridLayout.addWidget(self.label_7, 0, 2, 1, 2)
-        self.y_lineedit = QtWidgets.QLineEdit(self.groupBox)
-        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Fixed)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.y_lineedit.sizePolicy().hasHeightForWidth())
-        self.y_lineedit.setSizePolicy(sizePolicy)
-        self.y_lineedit.setInputMethodHints(QtCore.Qt.ImhFormattedNumbersOnly|QtCore.Qt.ImhPreferNumbers)
-        self.y_lineedit.setObjectName("y_lineedit")
-        self.gridLayout.addWidget(self.y_lineedit, 2, 3, 1, 1)
-        self.spectrum_radioButton = QtWidgets.QRadioButton(self.groupBox)
-        self.spectrum_radioButton.setObjectName("spectrum_radioButton")
-        self.buttonGroup.addButton(self.spectrum_radioButton)
-        self.gridLayout.addWidget(self.spectrum_radioButton, 3, 1, 1, 1)
-        self.x_label = QtWidgets.QLabel(self.groupBox)
-        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Preferred)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.x_label.sizePolicy().hasHeightForWidth())
-        self.x_label.setSizePolicy(sizePolicy)
-        self.x_label.setObjectName("x_label")
-        self.gridLayout.addWidget(self.x_label, 1, 2, 1, 1)
+        self.verticalLayout_6.addWidget(self.column_checkBox)
         self.line_spinBox = QtWidgets.QSpinBox(self.groupBox)
         sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Fixed)
         sizePolicy.setHorizontalStretch(0)
@@ -122,17 +55,114 @@ class Ui_ascii_reader(object):
         self.line_spinBox.setSizePolicy(sizePolicy)
         self.line_spinBox.setMinimum(1)
         self.line_spinBox.setObjectName("line_spinBox")
-        self.gridLayout.addWidget(self.line_spinBox, 1, 0, 1, 1)
+        self.verticalLayout_6.addWidget(self.line_spinBox)
+        self.label_6 = QtWidgets.QLabel(self.groupBox)
+        self.label_6.setObjectName("label_6")
+        self.verticalLayout_6.addWidget(self.label_6)
         self.preview_spinBox = QtWidgets.QSpinBox(self.groupBox)
         self.preview_spinBox.setMinimum(1)
         self.preview_spinBox.setProperty("value", 10)
         self.preview_spinBox.setObjectName("preview_spinBox")
-        self.gridLayout.addWidget(self.preview_spinBox, 3, 0, 1, 1)
-        self.label_6 = QtWidgets.QLabel(self.groupBox)
-        self.label_6.setObjectName("label_6")
-        self.gridLayout.addWidget(self.label_6, 2, 0, 1, 1)
+        self.verticalLayout_6.addWidget(self.preview_spinBox)
+        spacerItem = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
+        self.verticalLayout_6.addItem(spacerItem)
+        self.horizontalLayout_4.addLayout(self.verticalLayout_6)
+        self.verticalLayout_5 = QtWidgets.QVBoxLayout()
+        self.verticalLayout_5.setObjectName("verticalLayout_5")
+        self.label = QtWidgets.QLabel(self.groupBox)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.MinimumExpanding, QtWidgets.QSizePolicy.Preferred)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.label.sizePolicy().hasHeightForWidth())
+        self.label.setSizePolicy(sizePolicy)
+        self.label.setObjectName("label")
+        self.verticalLayout_5.addWidget(self.label)
+        self.pts_radioButton = QtWidgets.QRadioButton(self.groupBox)
+        self.pts_radioButton.setChecked(True)
+        self.pts_radioButton.setAutoExclusive(True)
+        self.pts_radioButton.setObjectName("pts_radioButton")
+        self.buttonGroup = QtWidgets.QButtonGroup(ascii_reader)
+        self.buttonGroup.setObjectName("buttonGroup")
+        self.buttonGroup.addButton(self.pts_radioButton)
+        self.verticalLayout_5.addWidget(self.pts_radioButton)
+        self.dsc_radioButton = QtWidgets.QRadioButton(self.groupBox)
+        self.dsc_radioButton.setObjectName("dsc_radioButton")
+        self.buttonGroup.addButton(self.dsc_radioButton)
+        self.verticalLayout_5.addWidget(self.dsc_radioButton)
+        self.FID_radioButton = QtWidgets.QRadioButton(self.groupBox)
+        self.FID_radioButton.setAutoExclusive(True)
+        self.FID_radioButton.setObjectName("FID_radioButton")
+        self.buttonGroup.addButton(self.FID_radioButton)
+        self.verticalLayout_5.addWidget(self.FID_radioButton)
+        self.spectrum_radioButton = QtWidgets.QRadioButton(self.groupBox)
+        self.spectrum_radioButton.setObjectName("spectrum_radioButton")
+        self.buttonGroup.addButton(self.spectrum_radioButton)
+        self.verticalLayout_5.addWidget(self.spectrum_radioButton)
+        self.bds_radioButton = QtWidgets.QRadioButton(self.groupBox)
+        self.bds_radioButton.setObjectName("bds_radioButton")
+        self.buttonGroup.addButton(self.bds_radioButton)
+        self.verticalLayout_5.addWidget(self.bds_radioButton)
+        self.horizontalLayout_4.addLayout(self.verticalLayout_5)
+        self.gridLayout_2 = QtWidgets.QGridLayout()
+        self.gridLayout_2.setObjectName("gridLayout_2")
+        self.deltay_lineEdit = QtWidgets.QLineEdit(self.groupBox)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Fixed)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.deltay_lineEdit.sizePolicy().hasHeightForWidth())
+        self.deltay_lineEdit.setSizePolicy(sizePolicy)
+        self.deltay_lineEdit.setObjectName("deltay_lineEdit")
+        self.gridLayout_2.addWidget(self.deltay_lineEdit, 3, 1, 1, 1)
+        self.label_7 = QtWidgets.QLabel(self.groupBox)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.MinimumExpanding, QtWidgets.QSizePolicy.Preferred)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.label_7.sizePolicy().hasHeightForWidth())
+        self.label_7.setSizePolicy(sizePolicy)
+        self.label_7.setObjectName("label_7")
+        self.gridLayout_2.addWidget(self.label_7, 0, 0, 1, 2)
+        self.y_lineedit = QtWidgets.QLineEdit(self.groupBox)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Fixed)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.y_lineedit.sizePolicy().hasHeightForWidth())
+        self.y_lineedit.setSizePolicy(sizePolicy)
+        self.y_lineedit.setInputMethodHints(QtCore.Qt.ImhFormattedNumbersOnly|QtCore.Qt.ImhPreferNumbers)
+        self.y_lineedit.setObjectName("y_lineedit")
+        self.gridLayout_2.addWidget(self.y_lineedit, 2, 1, 1, 1)
+        self.y_label = QtWidgets.QLabel(self.groupBox)
+        self.y_label.setObjectName("y_label")
+        self.gridLayout_2.addWidget(self.y_label, 2, 0, 1, 1)
+        self.x_lineedit = QtWidgets.QLineEdit(self.groupBox)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Fixed)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.x_lineedit.sizePolicy().hasHeightForWidth())
+        self.x_lineedit.setSizePolicy(sizePolicy)
+        self.x_lineedit.setInputMethodHints(QtCore.Qt.ImhFormattedNumbersOnly|QtCore.Qt.ImhPreferNumbers)
+        self.x_lineedit.setObjectName("x_lineedit")
+        self.gridLayout_2.addWidget(self.x_lineedit, 1, 1, 1, 1)
+        self.label_5 = QtWidgets.QLabel(self.groupBox)
+        self.label_5.setObjectName("label_5")
+        self.gridLayout_2.addWidget(self.label_5, 3, 0, 1, 1)
+        self.x_label = QtWidgets.QLabel(self.groupBox)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Preferred)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.x_label.sizePolicy().hasHeightForWidth())
+        self.x_label.setSizePolicy(sizePolicy)
+        self.x_label.setObjectName("x_label")
+        self.gridLayout_2.addWidget(self.x_label, 1, 0, 1, 1)
+        spacerItem1 = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
+        self.gridLayout_2.addItem(spacerItem1, 4, 1, 1, 1)
+        self.horizontalLayout_4.addLayout(self.gridLayout_2)
         self.verticalLayout_3.addWidget(self.groupBox)
         self.groupBox_2 = QtWidgets.QGroupBox(self.tabWidgetPage1)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.MinimumExpanding)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.groupBox_2.sizePolicy().hasHeightForWidth())
+        self.groupBox_2.setSizePolicy(sizePolicy)
         self.groupBox_2.setObjectName("groupBox_2")
         self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.groupBox_2)
         self.verticalLayout_2.setContentsMargins(3, 3, 3, 3)
@@ -215,15 +245,15 @@ class Ui_ascii_reader(object):
         self.pushButton.setSizePolicy(sizePolicy)
         self.pushButton.setObjectName("pushButton")
         self.formLayout.setWidget(5, QtWidgets.QFormLayout.FieldRole, self.pushButton)
-        spacerItem = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
-        self.formLayout.setItem(6, QtWidgets.QFormLayout.FieldRole, spacerItem)
+        spacerItem2 = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
+        self.formLayout.setItem(6, QtWidgets.QFormLayout.FieldRole, spacerItem2)
         self.horizontalLayout_3.addLayout(self.formLayout)
         self.tabWidget.addTab(self.tabWidgetPage2, "")
         self.verticalLayout.addWidget(self.tabWidget)
         self.horizontalLayout = QtWidgets.QHBoxLayout()
         self.horizontalLayout.setObjectName("horizontalLayout")
-        spacerItem1 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
-        self.horizontalLayout.addItem(spacerItem1)
+        spacerItem3 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
+        self.horizontalLayout.addItem(spacerItem3)
         self.verticalLayout.addLayout(self.horizontalLayout)
         self.horizontalLayout_2 = QtWidgets.QHBoxLayout()
         self.horizontalLayout_2.setContentsMargins(-1, 0, -1, -1)
@@ -231,8 +261,8 @@ class Ui_ascii_reader(object):
         self.skippy_checkbox = QtWidgets.QCheckBox(ascii_reader)
         self.skippy_checkbox.setObjectName("skippy_checkbox")
         self.horizontalLayout_2.addWidget(self.skippy_checkbox)
-        spacerItem2 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
-        self.horizontalLayout_2.addItem(spacerItem2)
+        spacerItem4 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
+        self.horizontalLayout_2.addItem(spacerItem4)
         self.verticalLayout.addLayout(self.horizontalLayout_2)
         self.buttonbox = QtWidgets.QDialogButtonBox(ascii_reader)
         self.buttonbox.setStandardButtons(QtWidgets.QDialogButtonBox.Apply|QtWidgets.QDialogButtonBox.Cancel|QtWidgets.QDialogButtonBox.Ok)
@@ -243,16 +273,7 @@ class Ui_ascii_reader(object):
         self.tabWidget.setCurrentIndex(0)
         self.buttonbox.rejected.connect(ascii_reader.close) # type: ignore
         QtCore.QMetaObject.connectSlotsByName(ascii_reader)
-        ascii_reader.setTabOrder(self.tabWidget, self.column_checkBox)
-        ascii_reader.setTabOrder(self.column_checkBox, self.line_spinBox)
-        ascii_reader.setTabOrder(self.line_spinBox, self.preview_spinBox)
-        ascii_reader.setTabOrder(self.preview_spinBox, self.pts_radioButton)
-        ascii_reader.setTabOrder(self.pts_radioButton, self.FID_radioButton)
-        ascii_reader.setTabOrder(self.FID_radioButton, self.spectrum_radioButton)
-        ascii_reader.setTabOrder(self.spectrum_radioButton, self.x_lineedit)
-        ascii_reader.setTabOrder(self.x_lineedit, self.y_lineedit)
-        ascii_reader.setTabOrder(self.y_lineedit, self.deltay_lineEdit)
-        ascii_reader.setTabOrder(self.deltay_lineEdit, self.ascii_table)
+        ascii_reader.setTabOrder(self.tabWidget, self.ascii_table)
         ascii_reader.setTabOrder(self.ascii_table, self.skippy_checkbox)
         ascii_reader.setTabOrder(self.skippy_checkbox, self.delay_textfield)
         ascii_reader.setTabOrder(self.delay_textfield, self.delay_lineedit)
@@ -267,19 +288,21 @@ class Ui_ascii_reader(object):
         _translate = QtCore.QCoreApplication.translate
         ascii_reader.setWindowTitle(_translate("ascii_reader", "Read text file"))
         self.groupBox.setTitle(_translate("ascii_reader", "Options"))
-        self.FID_radioButton.setText(_translate("ascii_reader", "FID"))
-        self.x_lineedit.setToolTip(_translate("ascii_reader", "<html><head/><body><p>Specify which column is used as x-value.</p></body></html>"))
-        self.y_label.setText(_translate("ascii_reader", "y"))
-        self.pts_radioButton.setText(_translate("ascii_reader", "Points"))
-        self.label_5.setText(_translate("ascii_reader", "<html><head/><body><p>Δy</p></body></html>"))
         self.column_checkBox.setText(_translate("ascii_reader", "Column name"))
-        self.label.setText(_translate("ascii_reader", "Import as"))
-        self.label_7.setText(_translate("ascii_reader", "Use columns as"))
-        self.y_lineedit.setToolTip(_translate("ascii_reader", "<html><head/><body><p>Specify which columns are read for y-values. (\'Points\': Every number creates a new data set;\'FID\'/\'Spectrum\': Numbers at even positions are used for real parts, at odd positions for imaginary parts.)</p></body></html>"))
-        self.spectrum_radioButton.setText(_translate("ascii_reader", "Spectrum"))
-        self.x_label.setText(_translate("ascii_reader", "x"))
         self.line_spinBox.setPrefix(_translate("ascii_reader", "header line "))
         self.label_6.setText(_translate("ascii_reader", "Preview length"))
+        self.label.setText(_translate("ascii_reader", "Import as"))
+        self.pts_radioButton.setText(_translate("ascii_reader", "Points"))
+        self.dsc_radioButton.setText(_translate("ascii_reader", "DSC"))
+        self.FID_radioButton.setText(_translate("ascii_reader", "FID"))
+        self.spectrum_radioButton.setText(_translate("ascii_reader", "Spectrum"))
+        self.bds_radioButton.setText(_translate("ascii_reader", "BDS"))
+        self.label_7.setText(_translate("ascii_reader", "Use columns as"))
+        self.y_lineedit.setToolTip(_translate("ascii_reader", "<html><head/><body><p>Specify which columns are read for y-values. (\'Points\': Every number creates a new data set;\'FID\'/\'Spectrum\': Numbers at even positions are used for real parts, at odd positions for imaginary parts.)</p></body></html>"))
+        self.y_label.setText(_translate("ascii_reader", "y"))
+        self.x_lineedit.setToolTip(_translate("ascii_reader", "<html><head/><body><p>Specify which column is used as x-value.</p></body></html>"))
+        self.label_5.setText(_translate("ascii_reader", "<html><head/><body><p>Δy</p></body></html>"))
+        self.x_label.setText(_translate("ascii_reader", "x"))
         self.groupBox_2.setTitle(_translate("ascii_reader", "Preview"))
         self.tabWidget.setTabText(self.tabWidget.indexOf(self.tabWidgetPage1), _translate("ascii_reader", "Data"))
         self.label_2.setText(_translate("ascii_reader", "Number of delays"))
diff --git a/src/gui_qt/io/asciireader.py b/src/gui_qt/io/asciireader.py
index 4a41bc0..153b069 100644
--- a/src/gui_qt/io/asciireader.py
+++ b/src/gui_qt/io/asciireader.py
@@ -167,7 +167,6 @@ class QAsciiReader(QtWidgets.QDialog, Ui_ascii_reader):
         # default row for x is the first row, it will be superseded if an integer number is given.
         try:
             x = int(self.x_lineedit.text())-1
-            print(x)
         except ValueError:
             x = None
 
@@ -199,7 +198,7 @@ class QAsciiReader(QtWidgets.QDialog, Ui_ascii_reader):
                                          col_names=col_header)
             self.data_read.emit(ret_dic)
 
-        except Exception as e:
+        except ImportError as e:
             _ = QtWidgets.QMessageBox.information(self, 'Reading failed',
                                                   f'Import data failed with {e.args}')
 
@@ -211,5 +210,4 @@ class QAsciiReader(QtWidgets.QDialog, Ui_ascii_reader):
 
     @QtCore.pyqtSlot(int, name='on_skippy_checkbox_stateChanged')
     def skip_next_dial(self, _: int):
-        print('skippy das buschkänguru', _)
         self.skip = self.skippy_checkbox.isChecked()
diff --git a/src/gui_qt/io/dscreader.py b/src/gui_qt/io/dscreader.py
index d83a46f..b672a78 100644
--- a/src/gui_qt/io/dscreader.py
+++ b/src/gui_qt/io/dscreader.py
@@ -254,6 +254,7 @@ class QDSCReader(QtWidgets.QDialog, Ui_Dialog):
 
         if filesave:
             new_val.savetxt(self.fname.with_name(f'{self.fname.stem} {rate}K-min {mode}.dat'.replace(' ', '_')))
+            close_after = False
         else:
             self.data_read.emit([new_val])
 
diff --git a/src/nmreval/data/dsc.py b/src/nmreval/data/dsc.py
index 69d3ba9..5f7c95d 100644
--- a/src/nmreval/data/dsc.py
+++ b/src/nmreval/data/dsc.py
@@ -18,12 +18,13 @@ from ..dsc.tnmh_model import TNMH
 
 class DSC(Points):
     def __init__(self, x, y, **kwargs):
+
+        y = np.asarray(y).reshape(np.asarray(x).shape)
+
         x, unique = np.unique(x, return_index=True)
 
         super().__init__(x, y[unique], **kwargs)
 
-        self.meta['is_fictive'] = False
-
     def get_fictive_cp(self, glass: tuple[float, float], liquid: tuple[float, float]) -> ('DSC', float):
         min_glass, max_glass = min(glass), max(glass)
         min_liquid, max_liquid = min(liquid), max(liquid)
diff --git a/src/nmreval/io/asciireader.py b/src/nmreval/io/asciireader.py
index 04fd19e..a998cc8 100644
--- a/src/nmreval/io/asciireader.py
+++ b/src/nmreval/io/asciireader.py
@@ -7,6 +7,8 @@ import numpy as np
 
 from ..data.points import Points
 from ..data.nmr import FID, Spectrum
+from ..data.bds import BDS
+from ..data.dsc import DSC
 from ..utils.utils import staggered_range
 
 NUMBERRE = re.compile(r'[0-9]\.*[0-9]*[Ee]*[+-]*[0-9]*')
@@ -88,7 +90,12 @@ class AsciiReader:
             self.delays = staggered_range(self.delays, stepsize=stag_size)
 
     def export(self, x: int = None, y: list = None, yerr: list = None,
-               mode: str = 'Points', col_names=None) -> list:
+               mode: str = 'points', col_names=None) -> list:
+
+        mode = mode.lower()
+        if mode not in ['points', 'fid', 'spectrum', 'dsc', 'bds']:
+            raise ValueError(f'Unknown mode {mode!r} as selected class')
+
         if yerr is None:
             yerr = []
         elif y is None:
@@ -141,20 +148,15 @@ class AsciiReader:
             kwargs = {'value': value, 'filename': self.fname, 'name': filename, 'group': filename, 'y_err': None}
 
             num_y = len(y)
-            if mode == 'Points':
-                single_len = 1
-                cls = Points
-                stepsize = 1
-            elif mode == 'FID':
-                cls = FID
+            single_len = 1
+            stepsize = 1
+
+            if mode in ['spectrum', 'fid', 'bds']:
+                # complex data types
                 single_len = 2
                 stepsize = 2
-            elif mode == 'Spectrum':
-                cls = Spectrum
-                single_len = 2
-                stepsize = 2
-            else:
-                raise ValueError(f'Unknown mode {mode}, mot ´Points´, ´FID´ or ´Spectrum´.')
+
+            cls = {'points': Points, 'fid': FID, 'spectrum': Spectrum, 'bds': BDS, 'dsc': DSC}[mode]
 
             for j in range(1, num_y+1, stepsize):
                 if col_names is not None:
diff --git a/src/resources/_ui/asciidialog.ui b/src/resources/_ui/asciidialog.ui
index cb9e338..4813898 100644
--- a/src/resources/_ui/asciidialog.ui
+++ b/src/resources/_ui/asciidialog.ui
@@ -41,10 +41,16 @@
        </item>
        <item>
         <widget class="QGroupBox" name="groupBox">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
          <property name="title">
           <string>Options</string>
          </property>
-         <layout class="QGridLayout" name="gridLayout">
+         <layout class="QHBoxLayout" name="horizontalLayout_4">
           <property name="leftMargin">
            <number>3</number>
           </property>
@@ -57,194 +63,255 @@
           <property name="bottomMargin">
            <number>3</number>
           </property>
-          <property name="horizontalSpacing">
-           <number>9</number>
-          </property>
-          <item row="2" column="1">
-           <widget class="QRadioButton" name="FID_radioButton">
-            <property name="text">
-             <string>FID</string>
-            </property>
-            <property name="autoExclusive">
-             <bool>true</bool>
-            </property>
-            <attribute name="buttonGroup">
-             <string notr="true">buttonGroup</string>
-            </attribute>
-           </widget>
+          <item>
+           <layout class="QVBoxLayout" name="verticalLayout_6">
+            <item>
+             <widget class="QCheckBox" name="column_checkBox">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="text">
+               <string>Column name</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSpinBox" name="line_spinBox">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="prefix">
+               <string>header line </string>
+              </property>
+              <property name="minimum">
+               <number>1</number>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QLabel" name="label_6">
+              <property name="text">
+               <string>Preview length</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSpinBox" name="preview_spinBox">
+              <property name="minimum">
+               <number>1</number>
+              </property>
+              <property name="value">
+               <number>10</number>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <spacer name="verticalSpacer_4">
+              <property name="orientation">
+               <enum>Qt::Vertical</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>20</width>
+                <height>40</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+           </layout>
           </item>
-          <item row="1" column="3">
-           <widget class="QLineEdit" name="x_lineedit">
-            <property name="sizePolicy">
-             <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
-              <horstretch>0</horstretch>
-              <verstretch>0</verstretch>
-             </sizepolicy>
-            </property>
-            <property name="toolTip">
-             <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Specify which column is used as x-value.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-            </property>
-            <property name="inputMethodHints">
-             <set>Qt::ImhFormattedNumbersOnly|Qt::ImhPreferNumbers</set>
-            </property>
-           </widget>
+          <item>
+           <layout class="QVBoxLayout" name="verticalLayout_5">
+            <item>
+             <widget class="QLabel" name="label">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="text">
+               <string>Import as</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QRadioButton" name="pts_radioButton">
+              <property name="text">
+               <string>Points</string>
+              </property>
+              <property name="checked">
+               <bool>true</bool>
+              </property>
+              <property name="autoExclusive">
+               <bool>true</bool>
+              </property>
+              <attribute name="buttonGroup">
+               <string notr="true">buttonGroup</string>
+              </attribute>
+             </widget>
+            </item>
+            <item>
+             <widget class="QRadioButton" name="dsc_radioButton">
+              <property name="text">
+               <string>DSC</string>
+              </property>
+              <attribute name="buttonGroup">
+               <string notr="true">buttonGroup</string>
+              </attribute>
+             </widget>
+            </item>
+            <item>
+             <widget class="QRadioButton" name="FID_radioButton">
+              <property name="text">
+               <string>FID</string>
+              </property>
+              <property name="autoExclusive">
+               <bool>true</bool>
+              </property>
+              <attribute name="buttonGroup">
+               <string notr="true">buttonGroup</string>
+              </attribute>
+             </widget>
+            </item>
+            <item>
+             <widget class="QRadioButton" name="spectrum_radioButton">
+              <property name="text">
+               <string>Spectrum</string>
+              </property>
+              <attribute name="buttonGroup">
+               <string notr="true">buttonGroup</string>
+              </attribute>
+             </widget>
+            </item>
+            <item>
+             <widget class="QRadioButton" name="bds_radioButton">
+              <property name="text">
+               <string>BDS</string>
+              </property>
+              <attribute name="buttonGroup">
+               <string notr="true">buttonGroup</string>
+              </attribute>
+             </widget>
+            </item>
+           </layout>
           </item>
-          <item row="2" column="2">
-           <widget class="QLabel" name="y_label">
-            <property name="text">
-             <string>y</string>
-            </property>
-           </widget>
-          </item>
-          <item row="1" column="1">
-           <widget class="QRadioButton" name="pts_radioButton">
-            <property name="text">
-             <string>Points</string>
-            </property>
-            <property name="checked">
-             <bool>true</bool>
-            </property>
-            <property name="autoExclusive">
-             <bool>true</bool>
-            </property>
-            <attribute name="buttonGroup">
-             <string notr="true">buttonGroup</string>
-            </attribute>
-           </widget>
-          </item>
-          <item row="3" column="3">
-           <widget class="QLineEdit" name="deltay_lineEdit">
-            <property name="sizePolicy">
-             <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
-              <horstretch>0</horstretch>
-              <verstretch>0</verstretch>
-             </sizepolicy>
-            </property>
-           </widget>
-          </item>
-          <item row="3" column="2">
-           <widget class="QLabel" name="label_5">
-            <property name="text">
-             <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Δy&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-            </property>
-           </widget>
-          </item>
-          <item row="0" column="0">
-           <widget class="QCheckBox" name="column_checkBox">
-            <property name="sizePolicy">
-             <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
-              <horstretch>0</horstretch>
-              <verstretch>0</verstretch>
-             </sizepolicy>
-            </property>
-            <property name="text">
-             <string>Column name</string>
-            </property>
-           </widget>
-          </item>
-          <item row="0" column="1">
-           <widget class="QLabel" name="label">
-            <property name="sizePolicy">
-             <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
-              <horstretch>0</horstretch>
-              <verstretch>0</verstretch>
-             </sizepolicy>
-            </property>
-            <property name="text">
-             <string>Import as</string>
-            </property>
-           </widget>
-          </item>
-          <item row="0" column="2" colspan="2">
-           <widget class="QLabel" name="label_7">
-            <property name="sizePolicy">
-             <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
-              <horstretch>0</horstretch>
-              <verstretch>0</verstretch>
-             </sizepolicy>
-            </property>
-            <property name="text">
-             <string>Use columns as</string>
-            </property>
-           </widget>
-          </item>
-          <item row="2" column="3">
-           <widget class="QLineEdit" name="y_lineedit">
-            <property name="sizePolicy">
-             <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
-              <horstretch>0</horstretch>
-              <verstretch>0</verstretch>
-             </sizepolicy>
-            </property>
-            <property name="toolTip">
-             <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Specify which columns are read for y-values. ('Points': Every number creates a new data set;'FID'/'Spectrum': Numbers at even positions are used for real parts, at odd positions for imaginary parts.)&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-            </property>
-            <property name="inputMethodHints">
-             <set>Qt::ImhFormattedNumbersOnly|Qt::ImhPreferNumbers</set>
-            </property>
-           </widget>
-          </item>
-          <item row="3" column="1">
-           <widget class="QRadioButton" name="spectrum_radioButton">
-            <property name="text">
-             <string>Spectrum</string>
-            </property>
-            <attribute name="buttonGroup">
-             <string notr="true">buttonGroup</string>
-            </attribute>
-           </widget>
-          </item>
-          <item row="1" column="2">
-           <widget class="QLabel" name="x_label">
-            <property name="sizePolicy">
-             <sizepolicy hsizetype="Maximum" vsizetype="Preferred">
-              <horstretch>0</horstretch>
-              <verstretch>0</verstretch>
-             </sizepolicy>
-            </property>
-            <property name="text">
-             <string>x</string>
-            </property>
-           </widget>
-          </item>
-          <item row="1" column="0">
-           <widget class="QSpinBox" name="line_spinBox">
-            <property name="sizePolicy">
-             <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
-              <horstretch>0</horstretch>
-              <verstretch>0</verstretch>
-             </sizepolicy>
-            </property>
-            <property name="prefix">
-             <string>header line </string>
-            </property>
-            <property name="minimum">
-             <number>1</number>
-            </property>
-           </widget>
-          </item>
-          <item row="3" column="0">
-           <widget class="QSpinBox" name="preview_spinBox">
-            <property name="minimum">
-             <number>1</number>
-            </property>
-            <property name="value">
-             <number>10</number>
-            </property>
-           </widget>
-          </item>
-          <item row="2" column="0">
-           <widget class="QLabel" name="label_6">
-            <property name="text">
-             <string>Preview length</string>
-            </property>
-           </widget>
+          <item>
+           <layout class="QGridLayout" name="gridLayout_2">
+            <item row="3" column="1">
+             <widget class="QLineEdit" name="deltay_lineEdit">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+             </widget>
+            </item>
+            <item row="0" column="0" colspan="2">
+             <widget class="QLabel" name="label_7">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="text">
+               <string>Use columns as</string>
+              </property>
+             </widget>
+            </item>
+            <item row="2" column="1">
+             <widget class="QLineEdit" name="y_lineedit">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="toolTip">
+               <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Specify which columns are read for y-values. ('Points': Every number creates a new data set;'FID'/'Spectrum': Numbers at even positions are used for real parts, at odd positions for imaginary parts.)&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+              </property>
+              <property name="inputMethodHints">
+               <set>Qt::ImhFormattedNumbersOnly|Qt::ImhPreferNumbers</set>
+              </property>
+             </widget>
+            </item>
+            <item row="2" column="0">
+             <widget class="QLabel" name="y_label">
+              <property name="text">
+               <string>y</string>
+              </property>
+             </widget>
+            </item>
+            <item row="1" column="1">
+             <widget class="QLineEdit" name="x_lineedit">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="toolTip">
+               <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Specify which column is used as x-value.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+              </property>
+              <property name="inputMethodHints">
+               <set>Qt::ImhFormattedNumbersOnly|Qt::ImhPreferNumbers</set>
+              </property>
+             </widget>
+            </item>
+            <item row="3" column="0">
+             <widget class="QLabel" name="label_5">
+              <property name="text">
+               <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Δy&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+              </property>
+             </widget>
+            </item>
+            <item row="1" column="0">
+             <widget class="QLabel" name="x_label">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Maximum" vsizetype="Preferred">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="text">
+               <string>x</string>
+              </property>
+             </widget>
+            </item>
+            <item row="4" column="1">
+             <spacer name="verticalSpacer_2">
+              <property name="orientation">
+               <enum>Qt::Vertical</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>20</width>
+                <height>40</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+           </layout>
           </item>
          </layout>
         </widget>
        </item>
        <item>
         <widget class="QGroupBox" name="groupBox_2">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Preferred" vsizetype="MinimumExpanding">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
          <property name="title">
           <string>Preview</string>
          </property>
@@ -489,15 +556,6 @@
  </customwidgets>
  <tabstops>
   <tabstop>tabWidget</tabstop>
-  <tabstop>column_checkBox</tabstop>
-  <tabstop>line_spinBox</tabstop>
-  <tabstop>preview_spinBox</tabstop>
-  <tabstop>pts_radioButton</tabstop>
-  <tabstop>FID_radioButton</tabstop>
-  <tabstop>spectrum_radioButton</tabstop>
-  <tabstop>x_lineedit</tabstop>
-  <tabstop>y_lineedit</tabstop>
-  <tabstop>deltay_lineEdit</tabstop>
   <tabstop>ascii_table</tabstop>
   <tabstop>skippy_checkbox</tabstop>
   <tabstop>delay_textfield</tabstop>