Not me either. i just saw them do a bank like this and am still wondering HOW!!!
a house i bid on had a video the guy gave me that "explained everything you need to know on how to do it"..
ahole! it was all of five minutes long!!! you can imagine how informative that was!! there are however, grooves cut it the panels every four feet or so for romex. however making a turn requires using a hole saw at the 90. lots of routering and hole sawing. i gave him my quote for remodelling at $10/sq ft. and as i anticipated, he called someone else. i would have lost my butt otherwise if i would have given him a standard $3/s/ft price.
i know somebody here will help us both out.