Line of sight blockers

Hello.
I've been working on a map now that uses buildings(Doodad: structures) as walls instead of trees. Because of that the players can see the other side of the wall wich is really bad because I'm making a tag... so I decided to put line of sight blockers around my buildings.
And I realized that you can't walk over them . So here's my question :)
How can I make line of sight blocking buildings.

O ya Puting Walkable as True does nothing

"Art - Occlusion Height" in the object editor. I do belive thats what you're looking for.

Yup, using the 'Art-Occlusion Height' adjusts the area behind the object that is blocked. You can see how it works by setting up a simple example where you give Player Red full view of the map then place the doodad in question somewhere in the map and you will then see the fog of war behind it.

It's much quicker than placing dozens of blockers anyway.

yay
so now... how do I remove all the blockers... XD
damn it this is going to be long

To select all of 1 type of object, select 1 and drop down the "Edit" menu, click 'Select special', all of the objects of the selected type will be selected.

That has saved me lots of time in some circumstances.

Ok thank you, my map will have a better future from now on! :)

Select special? I didn't know about that one.