I had to remove the panel for my shower to get at the pipes behind it. I cut a square around the panel in the drywall to take it out - now I need to fill in the gaps between the panel and the rest of the wall. I want to cut drywall to fill in the holes and then putty them together however I need a way to attach the drywall to the studs at the top, and the panel side on the right. Does anyone have any goods ideas on how to do this? Obviously I don't want to screw it in since it will show on the outside.