I'd love some droppable targets near the borders of the display to move a window into a specific layout.
Something like this:
┌───────────────────┐ ┌─────────┬────────┐
│ A │ │ A │ │
│ │ │ │ │
├───────────────────X -> ├─────────┤ C │
│ B │ │ B │ │
│ │ │ │ │
└───────────────────┘ └─────────┴────────┘
Where if I drag a window to X and release, it opens in a zone C. Right now it's actually a real pain to get to this arrangement, there's no easy way to add a peer to the A&B container in the layout tree - though if there is, then that would likely do what I want as well.