DavidJames

Hi Stephen, 
 
Try the following: 

Edit>Default Settings>Plan

At the bottom, put a check next to "Show Living Area Label". 
 

Split levels have always been a headache in Chief for me as well. 

In your specific scenario, I think you need to adjust the heights for: 

Ceiling Height
Stem Wall Top
Floor


 
Not sure if this is what you were hoping to achieve, but this is the end result: 


 
 
SPLIT ENTRY - R1.plan

I'm not sure if this is what you're trying to achieve, but take a look at the attachment (I've also made some adjustments for clarity)

Also, it seems the reason you're stairwell wasn't generating was because you had an invisible wall near the top of the stairs for some reason(?). Delete that and the railings and try rebuilding. 

 
Barn Copy - R1.plan

The "Match Properties Command" is your friend
 
Revised: 
1670 15TH ST ADDITION CURRENT 2 20.1 rev2.plan

Outline the walls above with invisible walls. This will create a room within the kitchen. Open up the room spec dbx for that newly created room and then drop down the ceiling height. Once the ceiling height is corrected, you can delete those invisible walls. See below:

Floor heights have always been a headache for me. 

However, I think in your case, the solution is simple. If you go down to your foundation level, you'll notice that your foundation is just one big room. So when you adjust the floor heights, it's adjusting everything. 

If you outline the garage walls with the foundation below, this should solve your problem. Going forward, I think if you assign the room definition before you build your foundation, or have autobuild on, it'll automatically add those walls for you.

Go to your foundation level, and open up your room specification dialogue box for the stairwell.

Once there, select structure and then change your ceiling height to "-4". I'm suspecting yours is probably "4".