Greetings.. I have not done interactive analysis of staircase building before. I did modeling because I thought it was necessary for my project, but I couldn't make a correct analysis... when I define the stair support, I say define it with the building, but after the analysis it goes into detached again... I can't see that it is supported on the beams, curtain and floor... I entered the floor slab as a normal floor because I couldn't define it with the route... Am I making a mistake in the modeling? Can you help me?