To rotate the block, use
your mouse wheel or buttons Q/E
To zoom camera in, hold Z
and left-click
To zoom camera out, hold
Alt and left-click
To move the camera, use arrows
on the keyboard or press Space and drag
the
mouse.
To apply physics
or rewind,
press Ctrl+Shift.
To undo the most
recent
action, press Ctrl+Z.
To remove a block, place
mouse over it and right-click.