object.group, ungroup, the clipping mask and compound path Make/Release,
the Arrange commands, lock, hide, edit.duplicate, object.move, rotate,
scale, reflect, shear and the Pathfinder commands acted only on the
selection, so a script had to send select.set first. Given ids, they now
select those objects (select.set, with its checks) and run as on the
selection, in the same undo step; without ids nothing changes.
