Enter cheat mode by pausing (Press [P]) then [Tab] - Resume with [P].
[PgUp]: Increase Altitude
[PgDn]: Decrease Altitude
[+]: Increase Movement Factor
[-]: Decrease Movement Factor
[F3]: Rotate Right
[D]: Debug Mode: Displays coordinates
[T]: Enter Coordinates to Transport to
[Shift]+[T]: Change Time of Day
[Shift]+[F3]: Rotate Up
[Shift]+[F4]: Rotate Down
[Ctrl]: Fine tune rotation keys above