Creating rooms on raised level

[kherrman]

Have a floor plan where a level is 3'-0" above the working level. The floor plan shows correctly as the cut line is 5'-0" above the working level, but it won't find room boundaries to be able to place a room. 

Do I need to create a plan region, or is there a way to set the limits and offsets of the room tag constraints?

[ToanDN]

Set Room Area computations to area + volume,set the raised floor to be room bounding and draw room separation lines around the raised area if you don't have walls there.

[GaryOrrMBI]

Go to any view where you can see the level, select it, and use the properties to set the "Computational Height" to 3' or higher:

[Lachlan-JWP]

Or place the rooms in a floor plan view that is associated with the raised level. They will still show and be taggable in your original floor plan view if the ranges are correct.