Negative Flying Height

Is it possible to move a unit to a negative flying height in-game?
I need to do this for an ability I'm making. It's a trap, When an enemy unit passes it it's supposed to sink in the ground. Any help appreciated.

I havent really tried this but I believe it cant be done. You can however, set the unit's fly height to - in the object editor instead of in game. If its a trap, you can create the unit, it wont be seen cuz its underground. Then if you use something like a terrain deform, to make the ground go down, the object will be seen. I've done this on one of my spells.

Nope, flyingheight doesnt work negative. what you can do is make (or let someone make) you a model which has an attachment point well below the unit and attach the real unit to that model making it appear lower than it really is.

Thank you for the replies,
I guess I will have to skip this ability, It's just too much for me :)

Reminds me of a spell i made, a summoning spell, when cast 3 stones comes up from ground and between those stones a unit was summoned. Was no custom model, i used a negative flying height for the unit in unit editor

I've never had problems with negative flying height. You just have to turn unit pathing and all that off before it will work.
I've used it for a goblin driller unit ... unfortunately noone ever made a nice model for it.

Yeah, I just tried, and it seems to work fine.

It does? my units always just stop at ground level :S I'll try again. Sorry to give out false info.

You have to set the minimum fly height to the same minus as well, else it wont work