Shortcuts
General
Ctrl + Z Undo (limited to some actions)
Ctrl + Y Redo
Ctrl + R Reset lua state
Ctrl + K See list of quick actions
Hierarchy
F Focus selected object in hierarchy
Esc Deselect object in hierarchy
Delete Delete selected object
Hold Ctrl Toggle between snapping and non snapping transform movement
Ctrl + D Duplicate
Camera
Shift Move faster
Alt Move slower
Q/E Move camera on alternative axis
Middle Mouse Button Focus the camera on the clicked point
Shape selection
V Paint
C Fill
R Remove
Ctrl + C Copy
Ctrl + V Paste
Ctrl + X Cut