*Stair reinforcement drawings are not provided with the formwork plan. You have to make the necessary adjustments using the 2D possibilities. *Stair supports are defined independently of the structure. There does not appear to be a problem here. If you want to solve the ladder together with the structure, you need to tick the anchoring conditions for the solution with the structure and specify which element the edge of the ladder is attached to. In addition, if the stair supports are arranged according to the solution conditions together with the structure, it is appropriate to analyze according to the semi-rigid diaphragm option.