It would be amazing if the Cameras had a "Open 3D Preview" button, which just opened another instance of the 3D Viewport / RTP in a new window, using said camera, with all the controls.
I've been really wanting to get different perspectives on me scenes while working without switching cameras, or mixing them up (happens more often than I'd like) and copying the wrong views. I can also simultaneously see what's going on in my scene by filling the right side of my monitor with four viewports, and working in TG in the left whole section of the screen in 4:3 (I like 4:3 with TG because node network doesn't take advantage of wide screens and stack horizontally).
Is this on the roadmap at all?
