multiple layouts commands?

My first experiments will probably be YouTube shorts / experimental tiktoks recording Bizarro-Dan (maybe that should be the name?). The vertical layout is good for that, but when I'm ready to live stream mr. bizarro and often for testing a horiztonal layout (a la p5.js web editor) is better. Maybe we could have commands to easily switch between the layouts.

The issue names no files, tests, or entry points. Start by locating the existing vertical layout and how commands or controls are handled, then clarify the supported layouts, switching mechanism, and expected behavior before implementation.

Written by the indexing model from the issue text.