I modeled a pool myself. I cannot reverse the loading I made on P4 and P5 curtains, now I want to load in the -y direction, I want to do it in the y direction. Also, what should I get values such as the rigid basement floor number and the R coefficient? I couldn't solve the system, when I turn the curtains into a shell, the curtains save, but then my downloads on the curtains are lost and I can't install a new one. I would be glad if you help.