first of all, good luck with your work. I think the deficiencies will be corrected in time. In v.10.02, the curtain tipping moment ratio is high and the ductile level is high. It does not give a warning even if it is 0.88 in a structure (y direction). When I solve the structure as mixed, the program does not give any warning when it is 0.70 (x direction). Although dts 2 is in a structure belonging to hollow floor, I can choose it as a system with limited ductility level. As far as I understand, the regulation article 4.3 It is necessary not to choose according to .4.3, I may have misinterpreted the item. Another issue is that when I choose the same project as ductility level mixed and do not use curtains, the program does not give a warning. What should be done to use punching reinforcement in columns with insufficient punching? Wall punching calculation in v10.02 Is it still not done? l To define u-section curtains as a group, is it enough to just double-click and type group1 or is it possible to use an i-section before? Do you need to act? Does the program automatically take the effective exact stiffness factors of the structural system?