SSPM Wall and Slab Connection and Releases

Question

Is there a way to control releases between the wall and slab in the physical modeler? 
 I'm trying to model a wall that is supported by a slab, but I do not want the wall to stiffen the slab. Can I release the connection between the two elements? 
 I suppose my question also applies to the slab that is supported by a wall. Can I adjust whether those nodes are rigidly connected vs pin connected? 
 Thanks!

Modestas · Answer

You can change these restraints in the Edge restraints spreadsheet:

Modestas · Answer

1) If you set wall's edge and its corners as Free, then instability will occur as the wall will not be connected to the slab. If you use Pin for a single corner only (remaining edge and corner is Free), the wall will spin around that corner which will also cause the instability. 
 2) Yes 
 3) Create a Reference Line at that top edge of the wall and then apply line load to the Reference Line. 
 4) If both corners are pinned but the remaining edge is free, then the slab will be much more flexible compared to the model where whole wall's edge is fixed. I believe that there should be some stiffening effect even with only both corner nodes pinned. To see the effect of it, you may model a slab without a wall, just with the same load at the location where wall connects with the slab. I believe that the results will be a bit different (from the model with only corners pinned), though I would not expect anything very significant.

Modestas · Answer

Why then you want to model that wood wall at all if it does not have any structural impact? For the graphical representation only? For the simplicity, I would simply apply the line load on the slab where it is intersected by a wall.