Send to Back - send to back of the screen selected object.
Bring to Front - bring to front of the screen selected object.
Align - align selected objects.
Rotate Clockwise - rotate clockwise selected object(s). To current rotation angle 90 degrees will be added.
Rotate CounterClockwise - rotate counter clockwise selected object(s). From current rotation angle 90 degrees will be subtracted.
Group Objects - group selected graphical objects.
Ungroup Objects - ungroup selected group of graphical objects.
Lock - lock selected object. You'll not be able to move this object after lock it.
Unlock - unlock selected object. You'll be able to move this object after unlock it.
Zoom out - zoom out screen.
Zoom equal - return to initial screen scale.
Zoom in - zoom in screen.
Snap to Grid - enable/disable the display of the grid on the drawing area.
Set grid step - setup the size of grid cells.