OBJECT MANIPULATION
Shift+mouse translation    Gridsnap on when moving an object
Shift+mouse rotation       Rotation snap on (default 45 degrees)
Arrow keys                 Move object in X (left/right) and Y (top/down)
Shift+arrow keys           Rotate object in XY plane
Ctrl+C		           Copy
Ctrl+V		           Paste
Delete		           Delete part (or entire selected support)
Enter       		   Confirm current open command (i.e. place support)
ESC		           Cancel current open command
Ctrl+Z		           Undo
Ctrl+Y		           Redo
FILE MANAGEMENT
Ctrl+N		New file
Ctrl+O		Open file
Ctrl+S		Save file
VIEWS
Ctrl+T		Top view
Ctrl+B		Bottom view
Ctrl+P		Perspective view
Ctrl+L		Left view
Ctrl+F		Front view
F5              Shaded view
F6              Wireframe view
F7              Filled frame view
F8              Transparent view
OBJECT SELECTION
Click                   Select object
Click+Shift	        Add object to selection (+1)
Click+Ctrl	        Remove object from selection (-1)
Drag mouse              Select 1 or multiple parts
Drag mouse + shift      Select 1 or multiple supports (but no part itself)
Ctrl+A		        Select all parts
Ctrl+D		        Deselect all parts
TRIANGLE SELECTION MODE
Click               Add a single triangle
Click + shift       Add multiple triangels (without being asked to select the entire critial)
Drag mouse          Add multiple triangles
Drag mouse + shift  Select multiple added triangles (turn yellow)
Click existing      Select single triangles
Delete              Deletes selected triangles
SUPPORT MODE
Delete	 	Delete selected parts only.
Ctrl+Delete	Delete entire selected support (also if just selecting 1 subpart)
Ctrl+Q		Toggle to single support mode
Ctrl+W		Toggle line view mode
Ctrl+E		Toggle point view mode