Add Walls from scratch and then get the Rooms using the feature:

Get Walls from processing, edit them and then update the Rooms:

Make sure that all Walls of selected Takeoff Zone are properly connected to each other:
By default, if Walls are connected, they show active open locks:

It doesn’t matter if locks are open or closed
Be careful: not all Walls that look connected are connected:

Fix all required connections using Snap-To-Points mode:

When all Walls in a Takeoff Zone are ready, click on ‘…’ next to the Rooms node in the Left Panel, then on ‘Re-process all Rooms’. If the Rooms node is absent, switch it on in Filters:


Re-processing Confirmation windows opens up informing that all Rooms will be redrawn:

Click ‘Re-process’ and wait for 10-20 seconds until Rooms will get pulled from the server:

Ready — brand new Rooms are drawn over existing Walls, ready to check and edit
If a Room contains some Room Label symbol inside, it will be placed to the Group with the name defined by the text of this symbol:

If a Room includes two or more Room Label symbols or none of them, it will go to ‘Unlabeled’ group:
