How to change the default setting of platform thickness?

[KentT]

Are you saying that there is no way to do this in HD Suite 9.0? I'm trying to design a 1.5 story post & beam layout that will use 2" thick T&G 2x6's as both the 2nd floor and 1st floor ceiling.

I've been able to "fake the exposed beams' using either soffitts or 3-D boxes, but I can't get rid of the default ceiling platform. But, in doing so, I'm essentially "double-counting" the thickness of the ceiling platform.

This adds erroneous height to the sidewalls, which carries over into rooflines and roof intercepts, etc. If I drop the 1st floor ceiling height to the bottom of the beams, then it impacts things like cabinets, etc.

Thanks for any suggestions!