Top cord bearing roof truss

[MN_JohnH]

I am wondering how to build a roof truss that bears on the top cord like this picture and then I would need to get the wall to frame up to that bearing point.
I have a plan here where I was able to change the shape of the truss and I made the walls to balloon through ceiling and now they go all the way to the upper truss cord and don't stop at the bearing point I created in the trusses with the truss envelope. Also, how can I get the framing  to use my trusses instead of making it's own trusses in addition to mine?

Raised bearing roof truss problem.plan

Edited 2 hours ago by MN_JohnH
Added information