By default, the hotkeys are setup in the following way:

Camera

  • LMB + WASDQE - move camera forward, left, backwards, right, down and up respectively;
  • LMB + MOUSE MOVE - rotate to look around;
  • LMB + LALT + MOUSE MOVE - orbit around focus point. If the camera hasn't been focused, the default focus point is the world origin;
  • MMB + MOUSE MOVE - pan;
  • MOUSE SCROLL WHEEL - zoom in/zoom out;

Scene Grid

  • [ - move grid down;
  • ] - move grid up;
  • LALT + LEFT CLICK - snaps the grid Y position to the intersection between the mouse cursor and an object in the scene;
  • LALT + LEFT DBL CLICK - same as above, but this time the positon will snap to either the top or bottom of the object, depending which one is closer to the cursor pick point. Useful when you need to quickly place the grid on top or below objects. Works with arbitrary object and grid rotations.

Move Gizmo

  • LSHIFT - enable 2D mode;
  • LCTRL - enable snapping;
  • V - enable vertex snapping (requires scripting to setup. See Vertex Snapping.

Rotation Gizmo

  • LCTRL - enable snapping;

Scale Gizmo

  • LCTRL - enable snapping;
  • LSHIFT - change multi-axis scale mode;

Universal Gizmo

  • LSHIFT - enable 2D mode;
  • LCTRL - enable snapping;
  • V - enable vertex snapping;

Undo/Redo

  • LCTRL + Z - Undo;
  • LCTRL + Y - Redo;