diff --git a/qtgui/mainwindow.py b/qtgui/mainwindow.py
index 33ae29e..68c411e 100644
--- a/qtgui/mainwindow.py
+++ b/qtgui/mainwindow.py
@@ -132,10 +132,11 @@ class MainWindow(TemplateMainWindow):
 
 
     def zoom(self, scaleFactor:float):
-        """Scale factor is absolute"""
+        """Scale factor is absolute. zooming three times to 2.0 will result in 2.0"""
         self.scoreView.zoom(scaleFactor)
 
     def stretchXCoordinates(self, factor:float):
+        """Cumulative factor. If you repeatedly send factor=2 it will double each time"""
         self.scoreView.stretchXCoordinates(factor)
 
     def updateStatusBar(self, exportCursorDict):
@@ -164,6 +165,8 @@ class MainWindow(TemplateMainWindow):
 
 
     def toggleMainView(self):
+        """Switch between the Track Editor and Score/Block Editor"""
+
         if self.ui.actionData_Editor.isChecked():
             self.ui.mainStackWidget.setCurrentIndex(self.ui.mainStackWidget.indexOf(self.trackEditor))
             self.scoreView.setEnabled(False) #disables shortcut like cursor movement, but not all of them.