Any possible way to zoom out further on low resolution in DE?

I have a decent pc except for my gpu, was waiting for prices to drop but that's not looking likely any time soon. I can run the game just fine at 1280x720 on the lowest graphics, and I never lag on 1v1s and 2v2s so I stick to those, but it's starting to get frustrating having the town center take up half the screen.

Is there any way to zoom out further, or use a resolution not listed in settings? I think I could pass the benchmark test on a resolution between 1280x720 and 1920x1080 if I had the option.