
This particular dialog is unfortunately technically not an actual window. It's just an overlay on the existing window. That's why it doesn't have a window frame, window buttons, window resize handles, etc.

Looking at the screenshot with 400+ specials, I question if a larger window would actually help? A little bit perhaps, but it's gonna be an awful lot of scrolling and skimming either way, having 8 items on screen or 40 items on screen won't make much of a difference. When you click
Edit Match do you know what
(e.g. episode number, episode title, etc) you're searching for at that point in time already? If so, then manual scrolling isn't ideal.

In this case, you'll want to just
type-ahead "jug" to navigate to the first match, and then press the
RIGHT arrow key to navigate to the second match, which is the match you want: