Heroes of Might & Magic III: Horn of the Abyss

Could it be possible to make the Teleport spell applicable not only to friendly units but also to enemy units (perhaps only on Expert difficulty for the Water faction)? Sometimes (if, for example, the focus is on archers and combat magic) this could be very useful... In "Heroes 4," there's a spell that pushes units back one tile (in case archers are blocked) – it would be nice to implement something similar (in particular, it could be used to push units into a pit :D), and even better, to give some units the ability to push an enemy stack back several tiles upon attack.