[ --- OVERALL --- ]

Unselect All = Esc
Select All = Control+A

[ --- MOUSE --- ]

Zoom = Control + Wheel Up/Down
Panning = Hold Middle Mouse Button and move
Multiple Selection = Tab + LMB

[ --- POINT MODE --- ]

Add vertice = Control + LMB
Delete vertice = Over vertice press Del
Curve controls = Hold Alt

[ --- SHAPE SELECTED --- ]

Clone = Hold control + Drag
Delete shape = Del
Enter Point Mode = Double Click on shape
Z-Sorting = Z + Wheel mouse up/down
Rotate by 15º = Hold control whilte rotate
Resize & Keep Ratio: Hold control while resize