Are there any design time events available to VBA add-ins?

In particular, I'd be interested in the following type of events for a
command button on a worksheet:

- The user selected or deselected the control while in design mode.

- The user has started dragging the control to a new location on the
worksheet while in design mode.

- The user has finished dragging the control to a new location on the
worksheet while in design mode.

Ideally the solution will be available in XL97 and later but I'd be willing
to consider options that only exist with later versions of XL.

TIA,

josh