T&P equipment should change size dynamically. Each Content Center fitting (pipe, elbows, tees, etc.) should get the size from the previously item populated. If I drop a reducer in the line the rest of the fittings and segments items should change automatically (Prompt the user if he wants to change, the rest of the elements along the route). The limitation here would be that it works with Content Center and iparts only, not individual authored fittings, because they don’t have a family table to feed from so they will not change as the rest (they can’t).
@dan_szymanski