Re: Defining Elevator Curtain Hello; When defining the curtain group, first select the curtain arms to be made as a single group. Press CRTL+E or open the right-click menu and click the "Properties" command. In the "general settings" tab of the "curtain settings" window that opens, in the "Group name" section, enter the name you have specified for the curtain group, for example "PG1". Then do the same for the curtains on the upper floors and enter the group name as "PG1". In this way, you define the PG1 curtain group on all floors. After analyzing, click the "curtain group" command in the reinforced concrete design section under the "analysis and design" menu in the ribbon menu. In this window, you can examine the results such as heading zones, reinforcement layout, capacity diagrams, moment curvature relations of the wall groups you defined.