Hello there; First of all, you will need to edit the dimensions of the columns that intersect with the curtains, other than that you don't need to do anything for TDY2007, but if you are going to use TBDY2018, you need to define group curtains. For this, it is enough to give the same group number from the curtain and column properties that make up the group. Since the curtains do not meet the requirements regarding the creation of the curtain header zone in the regulation, the header is not created. As you add floors to the building, this condition will be automatically checked and curtain headers will be created as necessary. The edited project is attached, I also share a few images. Best regards.