No Maximize Button - Clip Trim Window (Premiere Elements 15)

I am using Premiere Elements 15 on Windows 10. When I double click a clip on the timeline, a small trim window pops up. I find this easier and more accurate than trimming a clip directly on the timeline. However, I have to resize this window every time since I would like the window to be larger. This windows does not have a maximize button nor does it remember it's size. Resizing this window can be finicky. You have to hover the mouse at just the right place to get the resize arrows.

Am I missing something in the settings? Is there some keyboard shortcut that would maximize the window? Or is this something that could be fixed in an update to the software?

Thanks!