is there a way to lock a page layout?

Is there a way to lock a page layout so it doesn't move when mousing around? I use a mac and the magic mouse drives me crazy as I inadvertently move the score when trying to select things. I use the score layouts for rehearsal and have a tremor in my right hand that drives me crazy. Granted, I can get a different mouse, but was wondering if there was a way to lock the pages so they don't move.

thanks

Jerry