@jhz563, I appreciate all your input and ideas here! This thread belongs to @AviatorRuss but I've benefited as much as he has from all the guidance and dialogue. I tried to create my own Christmas layout post so as to not "threadjack" this one but that didn't get much love . . . which is the case for most spinoffs . . . except The Jeffersons! ;-) My proposed layout has two flat levels with a pair of interconnecting ramps but I don't know how to get that third dimension in SCARM. Any chance you could look at it in terms of feasibility?