Hello there; The red color is the nodal point. Blue and green represent freedom for the M2 and M3 directions. In summary, an articulated definition is made. This is how the scaffold macro comes in with automatic freedom, hinged to the rest of the elements except your anchors and columns. In other words, the column-column connection is modeled as fixed, the column-ground connection is recessed, the anchor is recessed. The reason is the working principle of scaffolds. In summary, there is no problem with these freedoms. However, if you want to create a special type and not use joints, you can freely create the same geometry with the steel column and steel beam commands without the scaffolding macro.