hello, I can't enter the titles of the curtain reinforcement in a school where I am doing performance analysis. I designed it with curtain icon, I don't understand why the title did not appear. (hw/lw>2) Check TBDY 2018 Item 7.6.2.1 and Figure 7.11. If the curtains meet the condition hw/lw>2, the program automatically creates the header reinforcement. Otherwise, the header region and reinforcement will not be created. If you still want to create a header region, You can define it with the "User Defined" option from the Curtain Properties/Reinforcement tab.