Zoom in	rotate mouse wheel forward or Alt + Left Click
Zoom out	rotate mouse wheel backward or Alt + Right Click
Pan	press middle mousekey (or wheel) + Drag or Ctrl + Alt + Drag
Select feature	Ctrl + Left Click
Select feature from selected layers only	Ctrl + Left Click (when Select tool is active)
Add to selection / Deselect	Shift + Ctrl + Left Click (also Shift + Left Click when Select tool is active)
Delete selected features	Del
Feature Info	double click
Save feature changes	Ctrl + S
Copy seletected features	Ctrl + C
Cut seletected features	Ctrl + X
Paste selected features	Ctrl + V
Copy image to clipboard	Ctrl + I
Enable / disable tooltips.	Ctrl + T
Redo	Ctrl + Y
Undo	Ctrl + Z
Zoom in active map window	Cursorkeys
Zoom in / out in active map window	Page up, Page down
Zoom to max. extent of map	Home key
Only with active object treatment
Adding new point	Alt + click on geometry
Removing point	Ctrl + click on point
Move / delete intermediate point in currenct selection	Shift + click on point
Only with active object treatment
Adding new point	Alt + click on geometry
Removing point	Ctrl + click on point
Move / delete intermediate point in currenct selection	Shift + click on point