Problem with doodads/terrain with boundries

[kirby561]

Hey all! I'm making a map and I'll skip all the details about what it's about and get to the point. I made a castle surrounded by walls. Each wall is made by a doodad with a downloaded model.

My problem is units can walk threw this wall which presents a problem...

I tried using boundries so units couldn't pass but that made
#1 a dark spot on the ground
#2 the doodad wall black.

Is there any way to make things inside boundries not change color? Right now I might have to resort to deleting the whole wall, putting down pathing blockers, and putting the whole thing back up again which will take a long time.

 

[ragingspeedhorn]

Under Doobads select Pathing Blockers, use that.