They're all fixer-uppers
I have a 3 gang switch box I need to add a romex 14-2 that I fished from the ceiling. The problem is, all of the wires run into this box are run into the top. The box has built in wire clamps at top and bottom. I can't figure out how i could fish the new wire down to the bottom of the box. I know one option is to cut the box out and put in a new remodel line box. The question is this, I'm guessing I can't just piggy-back one wire into the same clamp as another right?