diff --git a/src/gui_qt/_py/fitmodelwidget.py b/src/gui_qt/_py/fitmodelwidget.py
index a41f14b..f183f36 100644
--- a/src/gui_qt/_py/fitmodelwidget.py
+++ b/src/gui_qt/_py/fitmodelwidget.py
@@ -1,10 +1,11 @@
 # -*- coding: utf-8 -*-
 
-# Form implementation generated from reading ui file 'resources/_ui/fitmodelwidget.ui'
+# Form implementation generated from reading ui file 'src/resources/_ui/fitmodelwidget.ui'
 #
-# Created by: PyQt5 UI code generator 5.12.3
+# Created by: PyQt5 UI code generator 5.15.9
 #
-# 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_FitParameter(object):
     def setupUi(self, FitParameter):
         FitParameter.setObjectName("FitParameter")
-        FitParameter.resize(365, 78)
+        FitParameter.resize(365, 66)
         sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.MinimumExpanding)
         sizePolicy.setHorizontalStretch(0)
         sizePolicy.setVerticalStretch(0)
@@ -36,7 +37,7 @@ class Ui_FitParameter(object):
         self.parametername.setObjectName("parametername")
         self.horizontalLayout_2.addWidget(self.parametername)
         self.parameter_line = LineEdit(FitParameter)
-        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.MinimumExpanding, QtWidgets.QSizePolicy.Fixed)
         sizePolicy.setHorizontalStretch(0)
         sizePolicy.setVerticalStretch(0)
         sizePolicy.setHeightForWidth(self.parameter_line.sizePolicy().hasHeightForWidth())
@@ -44,20 +45,12 @@ class Ui_FitParameter(object):
         self.parameter_line.setText("")
         self.parameter_line.setObjectName("parameter_line")
         self.horizontalLayout_2.addWidget(self.parameter_line)
-        spacerItem = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
-        self.horizontalLayout_2.addItem(spacerItem)
         self.fixed_check = QtWidgets.QCheckBox(FitParameter)
         self.fixed_check.setObjectName("fixed_check")
         self.horizontalLayout_2.addWidget(self.fixed_check)
         self.global_checkbox = QtWidgets.QCheckBox(FitParameter)
         self.global_checkbox.setObjectName("global_checkbox")
         self.horizontalLayout_2.addWidget(self.global_checkbox)
-        self.toolButton = QtWidgets.QToolButton(FitParameter)
-        self.toolButton.setText("")
-        self.toolButton.setPopupMode(QtWidgets.QToolButton.InstantPopup)
-        self.toolButton.setArrowType(QtCore.Qt.RightArrow)
-        self.toolButton.setObjectName("toolButton")
-        self.horizontalLayout_2.addWidget(self.toolButton)
         self.verticalLayout.addLayout(self.horizontalLayout_2)
         self.frame = QtWidgets.QFrame(FitParameter)
         sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Maximum)
diff --git a/src/gui_qt/fit/fit_forms.py b/src/gui_qt/fit/fit_forms.py
index d49fac9..0a4179f 100644
--- a/src/gui_qt/fit/fit_forms.py
+++ b/src/gui_qt/fit/fit_forms.py
@@ -19,16 +19,16 @@ class FitModelWidget(QtWidgets.QWidget, Ui_FitParameter):
 
         self.parametername.setText(label + ' ')
 
-        # self.parameter_line.setValidator(validator)
         self.parameter_line.setText('1')
-        self.parameter_line.setMaximumWidth(60)
-        self.lineEdit.setMaximumWidth(60)
-        self.lineEdit_2.setMaximumWidth(60)
+        self.parameter_line.setMaximumWidth(160)
+        self.lineEdit.setMaximumWidth(100)
+        self.lineEdit_2.setMaximumWidth(100)
 
         self.label_3.setText(f'< {label} <')
 
         self.checkBox.stateChanged.connect(self.enableBounds)
         self.global_checkbox.stateChanged.connect(lambda: self.state_changed.emit())
+        self.parameter_line.editingFinished.connect(self.update_parameter)
         self.parameter_line.values_requested.connect(lambda: self.value_requested.emit(self))
         self.parameter_line.editingFinished.connect(lambda: self.value_changed.emit(self.parameter_line.text()))
         self.fixed_check.toggled.connect(self.set_fixed)
@@ -36,20 +36,12 @@ class FitModelWidget(QtWidgets.QWidget, Ui_FitParameter):
         if fixed:
             self.fixed_check.hide()
 
-        self.is_linked = None
         self.parameter_pos = None
         self.func_idx = None
 
         self._linetext = '1'
 
-        self.completer = QtWidgets.QCompleter()
-        self.completer.setCompletionMode(QtWidgets.QCompleter.UnfilteredPopupCompletion)
-        self.parameter_hint_model = QtGui.QStandardItemModel()
-        self.completer.setModel(self.parameter_hint_model)
-        self.parameter_line.setCompleter(self.completer)
-
         self.menu = QtWidgets.QMenu(self)
-        self.add_links()
 
     @property
     def name(self):
@@ -73,39 +65,24 @@ class FitModelWidget(QtWidgets.QWidget, Ui_FitParameter):
 
     def set_parameter(self, p: float | None, bds: tuple[float, float, bool] = None,
                       fixed: bool = None, glob: bool = None):
-        if p is None:
-            # bad hack: linked parameter return (None, linked parameter)
-            # if p is None -> parameter is linked to argument given by bds
-            self.link_parameter(linkto=bds)
-        else:
-            ptext = f'{p:.4g}'
+        ptext = f'{p:.4g}'
 
-            self.set_parameter_string(ptext)
+        self.set_parameter_string(ptext)
 
-            if bds is not None:
-                self.set_bounds(*bds)
+        if bds is not None:
+            self.set_bounds(*bds)
 
-            if fixed is not None:
-                self.fixed_check.setCheckState(QtCore.Qt.Unchecked if fixed else QtCore.Qt.Checked)
+        if fixed is not None:
+            self.fixed_check.setCheckState(QtCore.Qt.Unchecked if fixed else QtCore.Qt.Checked)
 
-            if glob is not None:
-                self.global_checkbox.setCheckState(QtCore.Qt.Checked if glob else QtCore.Qt.Unchecked)
+        if glob is not None:
+            self.global_checkbox.setCheckState(QtCore.Qt.Checked if glob else QtCore.Qt.Unchecked)
 
     def get_parameter(self):
-        if self.is_linked:
-            try:
-                p = float(self._linetext)
-            except ValueError:
-                p = 1.0
-        else:
-            try:
-                p = float(self.parameter_line.text().replace(',', '.'))
-            except ValueError:
-                p = self.parameter_line.text().replace(',', '.')
-                # _ = QtWidgets.QMessageBox().warning(self, 'Invalid value',
-                #                                     f'{self.parametername.text()} contains invalid values',
-                #                                     QtWidgets.QMessageBox.Cancel)
-                # return None
+        try:
+            p = float(self.parameter_line.text().replace(',', '.'))
+        except ValueError:
+            p = self.parameter_line.text().replace(',', '.')
 
         if self.checkBox.isChecked():
             try:
@@ -122,84 +99,26 @@ class FitModelWidget(QtWidgets.QWidget, Ui_FitParameter):
 
         bounds = (lb, rb)
 
-        return p, bounds, not self.fixed_check.isChecked(), self.global_checkbox.isChecked(), self.is_linked
+        return p, bounds, not self.fixed_check.isChecked(), self.global_checkbox.isChecked()
 
     @QtCore.pyqtSlot(bool)
     def set_fixed(self, state: bool):
         # self.global_checkbox.setVisible(not state)
         self.frame.setVisible(not state)
 
-    def add_links(self, parameter: dict = None):
-        if parameter is None:
-            parameter = {}
-        self.menu.clear()
-
-        self.parameter_hint_model.clear()
-
-        ac = QtWidgets.QAction('Link to...', self)
-        ac.triggered.connect(self.link_parameter)
-        self.menu.addAction(ac)
-
-        for model_key, model_funcs in parameter.items():
-            m = QtWidgets.QMenu('Model ' + model_key, self)
-            hint_key = model_key
-
-            for func_name, func_params in model_funcs.items():
-                m2 = QtWidgets.QMenu(func_name, m)
-                hint_key += f'.{func_name}'
-                for p_name, idx in func_params:
-                    ac = QtWidgets.QAction(p_name, m2)
-                    hint_key += f'.{p_name}'
-                    item = QtGui.QStandardItem(hint_key)
-                    item.setData((model_key, *idx))
-                    self.parameter_hint_model.appendRow(item)
-                    ac.setData((model_key, *idx))
-                    ac.triggered.connect(self.link_parameter)
-                    m2.addAction(ac)
-                m.addMenu(m2)
-            self.menu.addMenu(m)
-
-        self.toolButton.setMenu(self.menu)
-
     @QtCore.pyqtSlot()
-    def link_parameter(self, linkto=None):
-        if linkto is None:
-            action = self.sender()
-        else:
-            action = False
-            for m in self.menu.actions():
-                if m.menu():
-                    for a in m.menu().actions():
-                        if a.data() == linkto:
-                            action = a
-                            break
-                if action:
-                    break
-
-        if (self.func_idx, self.parameter_pos) == action.data():
-            return
+    def update_parameter(self):
+        new_value = self.parameter_line.text()
+        if not new_value:
+            self.parameter_line.setText('1')
 
         try:
-            new_text = f'Linked to {action.parentWidget().title()}.{action.text()}'
-            self._linetext = self.parameter_line.text()
-            self.parameter_line.setText(new_text)
-            self.parameter_line.setEnabled(False)
-            self.global_checkbox.hide()
-            self.global_checkbox.blockSignals(True)
-            self.global_checkbox.setCheckState(QtCore.Qt.Checked)
-            self.global_checkbox.blockSignals(False)
-            self.frame.hide()
-            self.is_linked = action.data()
+            float(new_value)
+            is_text = False
+        except ValueError:
+            is_text = True
 
-        except AttributeError:
-            self.parameter_line.setText(self._linetext)
-            self.parameter_line.setEnabled(True)
-            if self.fixed_check.isEnabled():
-                self.global_checkbox.show()
-                self.frame.show()
-            self.is_linked = None
-
-        self.state_changed.emit()
+        self.set_fixed(is_text)
 
 
 class QSaveModelDialog(QtWidgets.QDialog, Ui_SaveDialog):
@@ -294,8 +213,17 @@ class FitModelTree(QtWidgets.QTreeWidget):
         idx = item.data(0, self.counterRole)
         self.itemRemoved.emit(idx)
 
-    def add_function(self, idx: int, cnt: int, op: int, name: str, color: QtGui.QColor | str | tuple,
-                     parent: QtWidgets.QTreeWidgetItem = None, children: list = None, active: bool = True, **kwargs):
+    def add_function(self,
+                     idx: int,
+                     cnt: int,
+                     op: int,
+                     name: str,
+                     color: QtGui.QColor | str | tuple,
+                     parent: QtWidgets.QTreeWidgetItem = None,
+                     children: list = None,
+                     active: bool = True,
+                     param_names: list[str] = None,
+                     **kwargs):
         """
         Add function to tree and dictionary of functions.
         """
@@ -310,6 +238,10 @@ class FitModelTree(QtWidgets.QTreeWidget):
         it.setData(0, self.counterRole, cnt)
         it.setData(0, self.operatorRole, op)
         it.setText(0, name)
+        if param_names is not None:
+            it.setToolTip(0,
+                          'Parameter names:\n' +
+                          '\n'.join(f'{pn}({cnt})' for pn in param_names))
         it.setForeground(0, QtGui.QBrush(color))
 
         it.setIcon(0, get_icon(self.icons[op]))
diff --git a/src/gui_qt/fit/fit_parameter.py b/src/gui_qt/fit/fit_parameter.py
index 7c75f73..ae41510 100644
--- a/src/gui_qt/fit/fit_parameter.py
+++ b/src/gui_qt/fit/fit_parameter.py
@@ -114,10 +114,10 @@ class QFitParameterWidget(QtWidgets.QWidget, Ui_FormFit):
         self.scrollwidget.layout().addStretch(1)
         self.scrollwidget2.layout().addStretch(1)
 
-    def set_links(self, parameter):
-        for w in self.global_parameter:
-            if isinstance(w, FitModelWidget):
-                w.add_links(parameter)
+    # def set_links(self, parameter):
+    #     for w in self.global_parameter:
+    #         if isinstance(w, FitModelWidget):
+    #             w.add_links(parameter)
 
     @QtCore.pyqtSlot(str)
     def change_global_parameter(self, value: str, idx: int = None):
@@ -203,17 +203,15 @@ class QFitParameterWidget(QtWidgets.QWidget, Ui_FormFit):
         is_global = []
         is_fixed = []
         globs = []
-        is_linked = []
 
         for g in self.global_parameter:
             if isinstance(g, FitModelWidget):
-                p_i, bds_i, fixed_i, global_i, link_i = g.get_parameter()
+                p_i, bds_i, fixed_i, global_i = g.get_parameter()
 
                 globs.append(p_i)
                 bds.append(bds_i)
                 is_fixed.append(fixed_i)
                 is_global.append(global_i)
-                is_linked.append(link_i)
 
         lb, ub = list(zip(*bds))
 
@@ -267,7 +265,7 @@ class QFitParameterWidget(QtWidgets.QWidget, Ui_FormFit):
 
             data_parameter[sid] = (p, kw_p)
 
-        return data_parameter, lb, ub, is_fixed, global_p, is_linked
+        return data_parameter, lb, ub, is_fixed, global_p
 
     def set_parameter(self, set_id: str | None, parameter: list[float]) -> int:
         num_parameter = list(filter(lambda g: not isinstance(g, SelectionWidget), self.global_parameter))
diff --git a/src/gui_qt/fit/fitfunction.py b/src/gui_qt/fit/fitfunction.py
index 0d1c412..2b74641 100644
--- a/src/gui_qt/fit/fitfunction.py
+++ b/src/gui_qt/fit/fitfunction.py
@@ -128,7 +128,7 @@ class QFunctionWidget(QtWidgets.QWidget, Ui_Form):
 
         self.newFunction.emit(idx, cnt)
 
-        self.add_function(idx, cnt, op, name, col)
+        self.add_function(idx, cnt, op, name, col, param_names=self.functions[idx].params)
 
     def add_function(self, idx: int, cnt: int, op: int,
                      name: str, color: str | tuple[float, float, float] | BaseColor, **kwargs):
@@ -141,6 +141,7 @@ class QFunctionWidget(QtWidgets.QWidget, Ui_Form):
             qcolor = QtGui.QColor.fromRgbF(*color)
         else:
             qcolor = QtGui.QColor(color)
+
         self.functree.add_function(idx, cnt, op, name, qcolor, **kwargs)
 
         f = self.functions[idx]
diff --git a/src/gui_qt/fit/fitwindow.py b/src/gui_qt/fit/fitwindow.py
index 55116b7..d0b88be 100644
--- a/src/gui_qt/fit/fitwindow.py
+++ b/src/gui_qt/fit/fitwindow.py
@@ -116,7 +116,7 @@ class QFitDialog(QtWidgets.QWidget, Ui_FitDialog):
 
         # collect parameter names etc. to allow linkage
         self._func_list[self._current_model] = self.functionwidget.get_parameter_list()
-        dialog.set_links(self._func_list)
+        # dialog.set_links(self._func_list)
 
         # show same tab (general parameter/Data parameter)
         tab_idx = 0
@@ -229,7 +229,7 @@ class QFitDialog(QtWidgets.QWidget, Ui_FitDialog):
                 continue
 
             try:
-                p, lb, ub, var, glob, links = self.param_widgets[f['cnt']].get_parameter(function_use)
+                p, lb, ub, var, glob = self.param_widgets[f['cnt']].get_parameter(function_use)
             except ValueError as e:
                 _ = QtWidgets.QMessageBox().warning(self, 'Invalid value', str(e),
                                                     QtWidgets.QMessageBox.Ok)
@@ -240,7 +240,6 @@ class QFitDialog(QtWidgets.QWidget, Ui_FitDialog):
             parameter['lb'] += lb
             parameter['ub'] += ub
             parameter['var'] += var
-            parameter['links'] += links
             parameter['color'] += [f['color']]
 
             cnt = f['cnt']
diff --git a/src/nmreval/fit/minimizer.py b/src/nmreval/fit/minimizer.py
index 355769d..bc07df9 100644
--- a/src/nmreval/fit/minimizer.py
+++ b/src/nmreval/fit/minimizer.py
@@ -223,8 +223,6 @@ class FitRoutine(object):
     def run(self, mode: str = 'lsq'):
         self._abort = False
 
-        print('run')
-
         fit_groups, linked_parameter = self.prepare_links()
         for data_groups in fit_groups:
             if len(data_groups) == 1 and not self.linked:
@@ -256,6 +254,9 @@ class FitRoutine(object):
 
         self.unprep_run()
 
+        for r in self.result:
+            r.pprint()
+
         return self.result
 
     def _prep_data(self, data):
diff --git a/src/resources/_ui/fitmodelwidget.ui b/src/resources/_ui/fitmodelwidget.ui
index 02069fb..ffc0b93 100755
--- a/src/resources/_ui/fitmodelwidget.ui
+++ b/src/resources/_ui/fitmodelwidget.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>365</width>
-    <height>78</height>
+    <height>66</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -62,7 +62,7 @@
      <item>
       <widget class="LineEdit" name="parameter_line">
        <property name="sizePolicy">
-        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+        <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
          <horstretch>0</horstretch>
          <verstretch>0</verstretch>
         </sizepolicy>
@@ -78,19 +78,6 @@
        </property>
       </widget>
      </item>
-     <item>
-      <spacer name="horizontalSpacer">
-       <property name="orientation">
-        <enum>Qt::Horizontal</enum>
-       </property>
-       <property name="sizeHint" stdset="0">
-        <size>
-         <width>40</width>
-         <height>20</height>
-        </size>
-       </property>
-      </spacer>
-     </item>
      <item>
       <widget class="QCheckBox" name="fixed_check">
        <property name="text">
@@ -105,19 +92,6 @@
        </property>
       </widget>
      </item>
-     <item>
-      <widget class="QToolButton" name="toolButton">
-       <property name="text">
-        <string/>
-       </property>
-       <property name="popupMode">
-        <enum>QToolButton::InstantPopup</enum>
-       </property>
-       <property name="arrowType">
-        <enum>Qt::RightArrow</enum>
-       </property>
-      </widget>
-     </item>
     </layout>
    </item>
    <item>