How: Tap Enter VR and allow the AR + spatial data prompts. Furniture appears as coloured boxes from your Quest's Space Setup — read live, so it lines up with the physical room. This build does not draw wireframes. Door and window meshes are not boxed (that blocked the opening). Header must say r16.
Re-scan room opens Meta's Space Setup. Meta draws its own lines while that is open; this app cannot hide them. When you come back, tap HIDE EVERYTHING — if lines remain, they are the Quest Guardian / Space Setup overlay (Settings → Physical Space).
Moved your furniture? A moved couch is stale at Meta's end — tap Re-scan room to redraw it there and it updates here live.
Pick the assistant and your own body before you enter. Same roster as Chat. Voice switching later.