Can some one point me in the direction of a multi-delete option for custom scenery pieces......too many times I have found myself deleting one piece at a time rather than the whole messed up building, so if anyone has any info that'd be great.....if it doesn't exist than GET ON IT PEOPLE!!!!

you gotta delete cs one by one there is no way around it

As "Drew_" wrotes, there isn't any way to delete a whole building/structure build with cso's with only one click or an option. So everyone of us must deal with the bad and long way and delete every single wrong/displaced piece.

Only option is to "save" often and right before you build bigger buildings/stations or whatever.
Or build these buildings in an other sandbox scenario and after that import it to your real safegame.

If you displaced anything, simply reload the last safegame so you don't waste to much time to delete every single piece.

Soo long, Cobra