• Ctrl + Z to undo
  • Ctrl + Shift + Z to redo
  • Ctrl + [number] to select a tool
  • Delete to delete selected objects

3D view

  • Arrow keys to rotate the camera
  • W,A,S,D to move forward, left, back, right
  • Hold Space + hold Left mouse button for mouse look

Grid view

  • Mousewheel to zoom in and out
  • [ and ] to change grid size

Selection tool

  • Left Click select an object
  • Ctrl + Left click to toggle selection
  • Shift + drag to copy
  • R to rotate, left mouse click to finish rotation

Material tool

  • Left click select face & its material
  • Right click/Enter: apply material
  • Hold Shift to apply/select all of the shape’s faces