I have a new problem :blush: . I imported a model as an IGES file and this file consists out of about 150 surfaces. I can now turn the primary visibility off for each surface individually because if I select a surface I can access its shape properties in the attribute editor. But I can't access all the 150 shapes together. I included an image of my assembly tree as an example to make it a bit more clear. Do you know how to make all the shapes invisible together instead of unchecking a lot of primary visibility boxes?