Ok how do I do that?

This didnt fix the problem. When I draw the rectangle it still gives the colors inside it and wont allow the cut to happen. I can push no problem but not cut

Hi

I am new to sketchup. I was building a model and all seemed fine. I had cut out some windows and doors. Now for some reason when I draw the rectangle it imediately has several different colors in it and does not allow me to push a hole in the wall. In any wall any more for that matter in this model. It works fine for other models. Not sure what I have done. I was trying to make the model a group so I could cut out all the windows at once but may have done something wrong. Help please.