[Wine] Screen Resolution within the "Configure Wine" window

[Bear]

I had to reconfigure the wine window size in order to run an app. Having changed it, the window size was fine but the letter sizes are huge. When I try to reconfigure it i cannot get to the Graphics lower part of the page in order to put things right. Is there a way to do this other than with the mouse?
I.e, with some keyboard shortcuts?
Bear.