Roborock S5 max custom room?

[Trilis29]

Hello, I wanted to create custom room. Because my robot shows I have max count. So I though making outline and putting coordinates to clean segment would work, but seems not. Is it possible to do something this way?

Or I should just create many rectangles?

[PiotrMachowski]

Segment cleaning can use only already existing rooms (it starts cleaning using IDs, the outline is just for presentation purposes), so you have to use zone cleaning (rectangles)