mac – signature preferences too big for my screen. How can I resize so I can access the entire panel?

I’ve pretty much copied this question from another user because it’s the same problem I’m having. I don’t have the Moom App which was causing the other user to have difficulty seeing the entire panel because it was heading off the screen and there is no way to adjust the size. Because I have so many .signature ‘quotes’ attached to, when I switch to that tab in the preferences, the window is too large for my screen.