Best practice for getting 3D view of foundation when house has walkout basement

[GeneDavis]

I want to show the basement floor slab in the 3D view, which means I want the floor surfaces layer turned on.  OK I get that and did that.

 

But the 3D is showing me the 3/4 OSB up on the main floor deck which sits atop this walkout foundation.  What do you do to separate that out?

 

And then there is the pony wall element in this.  My walkout walls are pony walls, stemwalls down to below frost line, wood framed from grade on up.  How do you separate out the top part of the pony walls?

 

I know how to use the delete surface tool, but was hoping I could do this another way.

[robdyck]

You can't using pony walls. You have a couple of options.

Build just the concrete fdn walls on their own floor.

On the same floor, Use 2 separate walls overlapping each other. One of which will need to be "No Room Definition.

Make a copy of the plan file just for this purpose, and redefine the upper portion of the wall so each layer is an air gap.