Does anyone know of a way to do this? It seems that the game engine automatically changes any negative value entered in the SetUnitFlyHeight function to 0, making this unable to be done by normal way. Setting a unit's default flying height in the Object Editor to negative DOES work, though.
If Blizzard make buggy/incomplete triggers, there isn't much we can do about it, eh? I don't know if there is a solution. We'll just have to hope that they will solve this problem.
