Hello, When designing a carrier curtain, I deactivate the program find the head length option and manually enter a 0.5m long header. (Otherwise, it continues on the upper floors by reducing the head due to the load.) Despite the head length I entered manually, the program discards the amount of reinforcement it finds. For example: It finds 4 reinforcements for a 20cm head. When I change it manually and make the head 50 cm, it still leaves 4 reinforcements and this is reflected in the drawings. When I make 8 reinforcements as it should be, I get KAS error. I am attaching an example of the attachment, I would be glad if you help I wish you good work. Doruk Araplılı Civil Engineer