Design — switcher. Console and multiview are two windows of one application. Docked, they share a frame; ⇱ undocks either one onto its own display and the frame closes up. Click the buses, drag the T-bar, the amber 1–4 on a source sends it to a free box. An amber dot on a key means that camera is carrying a colour correction.
A button number is not a camera number — on the desk you want them left to right in the order they stand on site. The assignment is shared by the program and preview buses.