Locust, Transparency and Pathing Blockers: pls help!

Ok, first off, Locust is supposed to make a unit unselectable and so on. Well, for one of my spells, it summons Runes (Circles of powers with Rune model) and so i wanted to make them unselectable. I gave them the locust ability, but when the spawn, i can still click on them. is this because i also gave the rune other abilities? (perm. immolation and pheonix fire)

Second off, transparency: how do you do it? i always see this "vertex coloring 0%" thing in peoples post but i have no idea where to find that in world edit.

Last off, pathing blockers. They just dont seem to work for me. I put pathing blockers (Large)(air) along some cliffs in my map so flying units couldnt simply fly over them, but it doesnt work? i keep tryin to add more and stuff but nothing works.

Help with these subjects would be greatly appreciated. thanx

You can make the WE display pathing (under the View menu I think). When you've got it on, you can check to see if you're allowing pathing gaps in your air blocking wall.

1) Scroll down on your Rune unit in the Object Editor. Find where it says Classification and uncheck Summoned.

2) Transparency is done through triggers, it's in the animation section.

3) I have no idea

thanks for the help guys