I am attempting to spawn a group of burrowed zerglings on my map. In the Create Unit with Properties dialog (SCMDraft 2.080), I check the box for "Burrowed", and they spawn standing up. I've checked out the list of AI scripts, and nothing appears to be too obvious as 'burrow here'. I looked about 7 pages back in this forum and found nothing. Is there any way to create a burrowed unit, force a unit to burrow, or maybe, make a unit move into an area, decide there is nothing else to do, and burrow out of boredom?

Make sure the current player has the burrow ability researched.

Wow, that is fantastic, it worked perfectly, but now I have a related problem, it won't place burrowed units on top of eachother, nor will it place burrowed units underneath standing units. The objective of this trigger is to cause something like a billion units to pop out of one square, so now I need a way to get them to do that.

Create them somewhere else and move there.

Burrowed units will not stack, even over normal units, when first created, they must be moved to stack.

Or preplaced

Same thing as being created and moved...