I agree in as much as the math and basic object shouldn't be a huge task SD. I will say though that the editable hot spot script still baffles me. I can copy and paste it from one script to another and make it work but I'll be damned if I can figure out how the script works!
I think that the hardest part would be to tie the load path together. Strucalc's Load Tracker starts at the ridge and it's reactions can be tied to it's supports. The supports to beams below and so on until it reaches the earth. It would be nice to build a house with BIM and be able to track loads and determine if a member is adequate as you go along.
Someone must be working on this somewhere!
Doug