You can press F8 or go to the Map tool and click 8K to save out a higher res screenshot. The only thing is, i dont think it captures the lensflare
I typically turn lense flare off anyway for what I do. So that works.
Just curious. Will the import option allow animation like the built in models?
I personally have no use for animation other than static poses. But I know people who do machinima who would be very interested in that.