How to change game resolution in launcher?

[Pocketkid2]

How can I change the game's resolution/window size inside the technic launcher? I don't want to have to manually resize the window each time.

[Pocketkid2]

I've figured out how to change it in the options.txt file, changing overrideWidth and overrideHeight. Is there any easier way to do this in the launcher? I was just wondering.