On the Options Bar, select 3D Snapping. This enables the slanted column placement to snap to points that are not within the work plane of the view, such as columns in different elevations.
Click along any structural element or on an element endpoint to place the first point of the column.
Click another structural element to place the column.
The column is placed between the 2 structural elements.
NoteIf either of the placement clicks is not a snap reference to a structural element, the column end location will be defined by the placement of the click and the appropriate elevation defined in the Options Bar.