dimensions in HDpro9

[CurreyR]

I just "upgraded" to Home Designer Pro 9

My machine running Home Designer Pro 8 will show me surface to surface dimensions for interior walls AND the "inside surface" of the exterior walls.

I just cannot figure out how to get the same dimensioning in HDpro9 ...

The dimensions always seem to be to the "outside" of an exterior wall. (no matter how I change settings)

I also can't get the settings to be surface to surface of interior walls (what is this primary surface for an interior wall?).

For my case, I have "surface to surface" dimensions of an existing house. Sometimes those "surfaces" are to a Siding-4, sometime they are to an Interior-4.

How can I adjust the settings so I'm measuring surface to surface? (and hence do the layout from interior dimensions only)?

e.g. draw an exterior square, put 2 perpendicular interiors within it, make each of the 4 rooms all be 10'x10' interior "surface to surface" (without compensating for a walls thickness).

I know I'm missing something stupid here.