Did you know that you can place a structural system with columns, beams, grids, and even dimensions with a single click?
Instead of placing each element separately, go to Design > Grid System.
In the following window, you can choose between an orthogonal or radial grid, and you can add columns at the grid intersections, beams along the grid lines, and dimensions.
After defining the grid settings, naming, and position, click on the origin point and set the rotation to place the grid system.