diff --git a/src/Gui/Control.h b/src/Gui/Control.h
index e95db5453..68b237588 100644
--- a/src/Gui/Control.h
+++ b/src/Gui/Control.h
@@ -79,8 +79,20 @@ public:
     QTabWidget* tabPanel() const;
     //@}
 
+    /*!
+      If a task dialog is open then it indicates whether this task dialog allows other commands to modify
+      the document while it is open. If no task dialog is open true is returned.
+     */
     bool isAllowedAlterDocument(void) const;
+    /*!
+      If a task dialog is open then it indicates whether this task dialog allows other commands to modify
+      the 3d view while it is open. If no task dialog is open true is returned.
+     */
     bool isAllowedAlterView(void) const;
+    /*!
+      If a task dialog is open then it indicates whether this task dialog allows other commands to modify
+      the selection while it is open. If no task dialog is open true is returned.
+     */
     bool isAllowedAlterSelection(void) const;
 
 public Q_SLOTS:
diff --git a/src/Gui/TaskView/TaskDialog.h b/src/Gui/TaskView/TaskDialog.h
index 6772575bc..2f05ec435 100644
--- a/src/Gui/TaskView/TaskDialog.h
+++ b/src/Gui/TaskView/TaskDialog.h
@@ -71,10 +71,22 @@ public:
     { return documentName; }
     void setDocumentName(const std::string& doc)
     { documentName = doc; }
+    /*!
+      Indicates whether this task dialog allows other commands to modify
+      the document while it is open.
+    */
     virtual bool isAllowedAlterDocument(void) const
     { return false; }
+    /*!
+      Indicates whether this task dialog allows other commands to modify
+      the 3d view while it is open.
+    */
     virtual bool isAllowedAlterView(void) const
     { return true; }
+    /*!
+      Indicates whether this task dialog allows other commands to modify
+      the selection while it is open.
+    */
     virtual bool isAllowedAlterSelection(void) const
     { return true; }
     virtual bool needsFullSpace() const
diff --git a/src/Gui/TaskView/TaskDialogPython.h b/src/Gui/TaskView/TaskDialogPython.h
index 64ce68f4f..7222ea0f8 100644
--- a/src/Gui/TaskView/TaskDialogPython.h
+++ b/src/Gui/TaskView/TaskDialogPython.h
@@ -75,16 +75,33 @@ public:
     virtual QDialogButtonBox::StandardButtons getStandardButtons(void) const;
     virtual void modifyStandardButtons(QDialogButtonBox*);
 
+    /*!
+      Indicates whether this task dialog allows other commands to modify
+      the document while it is open.
+    */
     virtual bool isAllowedAlterDocument(void) const;
+    /*!
+      Indicates whether this task dialog allows other commands to modify
+      the 3d view while it is open.
+    */
     virtual bool isAllowedAlterView(void) const;
+    /*!
+      Indicates whether this task dialog allows other commands to modify
+      the selection while it is open.
+    */
     virtual bool isAllowedAlterSelection(void) const;
     virtual bool needsFullSpace() const;
 
 public:
+    /// is called by the framework when the dialog is opened
     virtual void open();
+    /// is called by the framework if a button is clicked which has no accept or reject role
     virtual void clicked(int);
+    /// is called by the framework if the dialog is accepted (Ok)
     virtual bool accept();
+    /// is called by the framework if the dialog is rejected (Cancel)
     virtual bool reject();
+    /// is called by the framework if the user press the help button 
     virtual void helpRequested();
     
 private:
diff --git a/src/Mod/Fem/Gui/TaskFemConstraint.h b/src/Mod/Fem/Gui/TaskFemConstraint.h
index f163f6da7..4ba739272 100644
--- a/src/Mod/Fem/Gui/TaskFemConstraint.h
+++ b/src/Mod/Fem/Gui/TaskFemConstraint.h
@@ -86,7 +86,6 @@ public:
     virtual bool accept();
     /// is called by the framework if the dialog is rejected (Cancel)
     virtual bool reject();
-    /// is called by the framework if the user presses the help button
     virtual bool isAllowedAlterDocument(void) const
     { return false; }
 
diff --git a/src/Mod/PartDesign/Gui/TaskChamferParameters.h b/src/Mod/PartDesign/Gui/TaskChamferParameters.h
index 9c0c99ec7..20d16bd39 100644
--- a/src/Mod/PartDesign/Gui/TaskChamferParameters.h
+++ b/src/Mod/PartDesign/Gui/TaskChamferParameters.h
@@ -90,7 +90,6 @@ public:
     virtual bool accept();
     /// is called by the framework if the dialog is rejected (Cancel)
     virtual bool reject();
-    /// is called by the framework if the user presses the help button
     virtual bool isAllowedAlterDocument(void) const
     { return false; }
 
diff --git a/src/Mod/PartDesign/Gui/TaskDraftParameters.h b/src/Mod/PartDesign/Gui/TaskDraftParameters.h
index 9f95bb9c3..7a19fef51 100644
--- a/src/Mod/PartDesign/Gui/TaskDraftParameters.h
+++ b/src/Mod/PartDesign/Gui/TaskDraftParameters.h
@@ -108,7 +108,6 @@ public:
     virtual bool accept();
     /// is called by the framework if the dialog is rejected (Cancel)
     virtual bool reject();
-    /// is called by the framework if the user presses the help button
     virtual bool isAllowedAlterDocument(void) const
     { return false; }
 
diff --git a/src/Mod/PartDesign/Gui/TaskFilletParameters.h b/src/Mod/PartDesign/Gui/TaskFilletParameters.h
index 06b735114..e05fd9fd2 100644
--- a/src/Mod/PartDesign/Gui/TaskFilletParameters.h
+++ b/src/Mod/PartDesign/Gui/TaskFilletParameters.h
@@ -90,7 +90,6 @@ public:
     virtual bool accept();
     /// is called by the framework if the dialog is rejected (Cancel)
     virtual bool reject();
-    /// is called by the framework if the user presses the help button
     virtual bool isAllowedAlterDocument(void) const
     { return false; }
 
diff --git a/src/Mod/PartDesign/Gui/TaskGrooveParameters.h b/src/Mod/PartDesign/Gui/TaskGrooveParameters.h
index 3587aba33..dbc5f9d4e 100644
--- a/src/Mod/PartDesign/Gui/TaskGrooveParameters.h
+++ b/src/Mod/PartDesign/Gui/TaskGrooveParameters.h
@@ -99,7 +99,6 @@ public:
     virtual bool accept();
     /// is called by the framework if the dialog is rejected (Cancel)
     virtual bool reject();
-    /// is called by the framework if the user presses the help button
     virtual bool isAllowedAlterDocument(void) const
     { return false; }
 
diff --git a/src/Mod/PartDesign/Gui/TaskPadParameters.h b/src/Mod/PartDesign/Gui/TaskPadParameters.h
index c78aa4183..e69295b34 100644
--- a/src/Mod/PartDesign/Gui/TaskPadParameters.h
+++ b/src/Mod/PartDesign/Gui/TaskPadParameters.h
@@ -107,7 +107,6 @@ public:
     virtual bool accept();
     /// is called by the framework if the dialog is rejected (Cancel)
     virtual bool reject();
-    /// is called by the framework if the user presses the help button 
     virtual bool isAllowedAlterDocument(void) const
     { return false; }
 
diff --git a/src/Mod/PartDesign/Gui/TaskPocketParameters.h b/src/Mod/PartDesign/Gui/TaskPocketParameters.h
index 2d209b051..ad5ef90de 100644
--- a/src/Mod/PartDesign/Gui/TaskPocketParameters.h
+++ b/src/Mod/PartDesign/Gui/TaskPocketParameters.h
@@ -104,7 +104,6 @@ public:
     virtual bool accept();
     /// is called by the framework if the dialog is rejected (Cancel)
     virtual bool reject();
-    /// is called by the framework if the user presses the help button 
     virtual bool isAllowedAlterDocument(void) const
     { return false; }
 
diff --git a/src/Mod/PartDesign/Gui/TaskRevolutionParameters.h b/src/Mod/PartDesign/Gui/TaskRevolutionParameters.h
index 1240a422f..764246cf8 100644
--- a/src/Mod/PartDesign/Gui/TaskRevolutionParameters.h
+++ b/src/Mod/PartDesign/Gui/TaskRevolutionParameters.h
@@ -99,7 +99,6 @@ public:
     virtual bool accept();
     /// is called by the framework if the dialog is rejected (Cancel)
     virtual bool reject();
-    /// is called by the framework if the user presses the help button
     virtual bool isAllowedAlterDocument(void) const
     { return false; }
 
diff --git a/src/Mod/PartDesign/Gui/TaskTransformedParameters.h b/src/Mod/PartDesign/Gui/TaskTransformedParameters.h
index 06de7ae15..c49766548 100644
--- a/src/Mod/PartDesign/Gui/TaskTransformedParameters.h
+++ b/src/Mod/PartDesign/Gui/TaskTransformedParameters.h
@@ -132,7 +132,6 @@ public:
     virtual bool accept();
     /// is called by the framework if the dialog is rejected (Cancel)
     virtual bool reject();
-    /// is called by the framework if the user presses the help button
     virtual bool isAllowedAlterDocument(void) const
         { return false; }