This new ability that I am trying to create is where it would cast above a building and then spread out in a circle of that one building up to about a range of 2000. Can this be done? ((With out triggering less your willing to show me lol, and have to have a on/off switch))
look up an author by the name of FlyFightFlea under Spells he has done some really magnificent things without triggers, you would have to find one with the effect you wanted then modify it a bit and make it targetable only to buildings...
Is this a request or help? cos you seem new and this might be harder then what can be explained through text without background knowledge.
I would offeer to take it up as arequest but am all ready to busy with my own.