from the reinforcement settings, how can we set the head reinforcement length on this crystal, because I can enter the starting and ending right and left lengths from the curtain only, but the cross cuts in a certain part of the P11 curtain, I want it to be as wide as the beam width only in that region[ /quote] There is no need to create a head zone at the point where the beam connects to the curtain. The conditions for creating an end zone on the curtain are specified in TBDY 2018 article 7.6.2. You can review the related TBDY 2018 and the link given below.
If you are still going to create a header region, at the point where the Curtain beam is connected, click the "Break" toolbar in the Curtain helper You can divide with the " command and define the header region length for the right side from the properties of P11.