Can't resize a Wineskin game window

Hey guys! So I just started using Wineskin so I could download and play a wrapper of an RPG Maker game, but whenever I try to resize the window or change it to full screen, it won't let me. I've tried pretty much every change possible in the graphic settings, so if anyone has any advice for me, I greatly appreciate it. I just want to drag the window so it's a little bigger, is all.