Thank you for your interest. Since it is the first project, I am worried that the column dimensions are insufficient, maybe it is an unfounded concern, but I wanted to get your suggestions because of my lack of experience. Is there a disadvantage in the semi-rigid system compared to the tam-rigid system? I couldn't make the settings, was it because I didn't choose the semi-rigid option?You're right, it would be healthier to define a column at the console point, but I can't define it because of the architecture. I wish you good work. In the system, its contribution to the system is added by taking into account the deformations of the slabs. Determining the stair support conditions is not a situation arising from the analysis option. However, when you specify the support conditions with the semi-rigid option, the systems are solved together. As I said, it is useful to correct the console case.