Is there some way to mod a building that does not have the zerg flag to be able to be built on ground that has Creep as well?

Or could the building have trhe zerg flag and somehow be prevented from spawning a Drone if cancelled?

Also would anyone like to help me with this second problem.
Let's say that we have a SCV that builds a building with the zerg flag, how could you make it possible to resume building progress if it got interrupted.