Construction-site banner: weekday hours → on-call agent. Weekends → online booking. Night → 3D tour. One QR, three sales motions.
Banner stays up for the whole build. The QR's destination flexes between live agent, online price-locked reservation, and a 3D walk-through depending on day and hour. Workspaces gate edits per development.
Free tier includes 1 permanent QR and the recovery key — upgrade the slot with the exact modules this case uses whenever you need them.