How can I add flying height to destructibles?

[RaffFonok]

I've seen alot of flying walls and ramps in maps, if You know how to add flying height to doodads and destructibles please tell me. Perhaps someone asked this question already but i haven't got enough time to read all

 

[Ninja_Duels]

You can create a unit, chance the model & make it non-clickable.

 

[Trillium]

just select doodad/destructible and adjust its height with CTRL+PageUp/CTRL+PageDown