How to composite/render multiple cameras via sequencer?

I have a level I use to capture a subject on a turntable from multiple angles. I use movie render queue and sequencer camera cuts to render image sequences and then composite them side-by-side along with a bit of UI info overlay all in AE.

I’d like to cut AE out of the pipeline entirely if possible and render both angels side-by-side and incorporate a UI overtop it all in Unreal. Is it possible to capture both cameras into one composite viewport shot?

Adding that I’ve essentially achieved this by creating another level/UI blueprint where I composite the image sequences onto a canvas via media players. That works okay, but I’m trying to avoid rendering the entire thing twice…