Specifying the Member Profile Open system_dir:\Users\Public\Public Documents\SOLIDWORKS\SOLIDWORKS 2020\samples\whatsnew\structure_system\point_length.SLDPRT. Click Insert > Structure System > Structure System to enter Structure System mode. Click Insert > Structure System > Primary Member to add primary members. Click Pin at the top of the PropertyManager. In the Profile tab, set the following: For Standard, select Iso. For Type, select pipe. For Size, select 21.3 x 2.3. Parent topicOptions for Creating Primary Members Based on Points