Making a flying hero hitable by melle units

Hi, in a map I'"m making (Aeon-style) I have a flying hero, which works fine.
However, for balancing reasons I'll like melee units to be able to hit him, while still leaving him with a real flying ability.
I suppose that I can just change the "Target as" field to ground, just wanted to know if anyone tried that and if there is any known side-effects - I've learned to be careful when doing things that were not planned by Blizzard.

TIA,

Kinniken

"targeted as" in the unit editor?

Sure, sorry for the typo. I was of course speaking of this one.

well, i made a flying hero too in my map...
but i set it to be targetted as a "ground" unit instead of "flying"