How to set a custom floor and ceiling for a room

Whereroom window (click the room floor)Dimensions block
FieldWhat it sets
CeilingTop of the room walls above the floor
Ceiling dropOwn stretch or suspended ceiling. While it is the same as the story's, there is none of its own
Floor levelFinished floor mark of the room relative to the story: bathroom −2, podium +15. On the plan, next to H, the mark is shown, for example −0.020
HeightHeight of the room from its finished floor to the ceiling