You can draw columns in OrthoGraph as objects. We have two kinds of columns, one is rectangular, while the other is circular. You can alter the size of them (diameter or width-depth).
There is no direct tool for creating beams, but you can add as separate zones wall segments with different elevations and heights representing these structural elements. Measuring them is another problem, but you can use hotspots for measuring their points, and adjust these altered walls to match the correct position.