I use 'TW' and 'BW' to wire on the top or bottom layers. But sometimes if there is a component selected, it moves the component to the other side --- typically to the bottom side, since components normally go on top. Even though I LOCK a component, it still gets flipped. In my opinion, LOCKing a component should lock which side it is on, but I would settle for the ability to separately lock the side. Thanks Tom