Turning off "Unit Collision"

Hi,

I want to create a spell which turns off only "unit" collision, not the full pathing collision, kind of like how Windwalk works. However, I don't want the invisibility that windwalk provides. Is this possible?

You can turn it off. Switch to the Object Editor and search I) Art - Elevation - Sample Radius, set it to 0 and then the units should be able to walk through your unit.
But i don't know how to change with trigger.

---Edit---
Found the command:
Unit - Turn collision for Unit on/off

Unit - Turn collision for Unit on/off, does pathing collision so you'd be able to walk through trees and cliffs. :( I guess the only solution is to do a Chaos transform?

Try the ability 'Aeth' (Ghost (Visible)).

Edit: I mean try adding it and removing it when the spell is done.

Damn! beat me to it.

It didn't work :( but thanks for the info. I wonder what it actual do.

It dosent work!?!
Ghost definatly lets you walk through units, buildings etc.
I used it in my tower defense map to aviod getting stuck.

maybe it only allows you to walk through buildings (there is a data field called Does not Block Building)

On a side note, setting the fade time on windwalk to -1 will make the unit never become invisible, but it will retain all the other WW effects.