Well using invisible stairwell boxes I have holes through all 3 levels in my home. Now I can work on creating 2 sets of custom regular OBJ model staircases. I have the "holes" set back a little past the walls on purpose. I'll add the upper level inside wall between the floor gap which will meet the hallway stair edge railing. The vertical floor texture will be hidden. I hope the staircases will show in the 2D plan. Right now the upper floor 2D view doesn't show any opening, just the 3D view does.
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Steve N Mavronis - Retired PC Tech
