Hello there; Open a new project. In the new project, model and analyze a single solid first. In the meantime, make your column height the same as your floor heights in the floor general settings. After analyzing a single layer, copy layers. However, in floor copying, steel columns are not copied, so in each floor's own plan, enter the columns so that they are the same height as the height of that floor. Pay attention to the freedom of your beams. There are beams that you have overlooked and that have looseness in the wrong place. Examine the scaffolding model in the demo carefully. Good work.