These give you quick access to the following functions (l to r):
- Select objects
- Move objects
- Scroll the map (following the mouse)
- Scroll the map
- Zoom the map to area outlined
- Zoom the map in or out
- Rotate the map clockwise or anti-clockwise
- Reset the view
- Undo changes
- Redo changes
- Set visibility of objects
- Turn object labelling on/off
- Turn the map grid on/off
- Turn bitmap overlay picture on/off
- Change the contour drawing method
- Turn DXF/Shapefile on/off
- Measure distances
- Add new objects
- Edit objects
Shortcut keys give access to many other functions.