It gives you a chance to add a little something extra to your interiors and the best part is that the doorway can be as wide as you like. You are not limited to a one unit or 2 unit opening.
Mark out the place on the wall you would like your doorway to be and place a column on each end.
Add the spandrel across the top. The spandrel will replace the entire length of wall.
Replace the walls you want to keep, leaving just the doorway open.
Since the columns and spandrels both auto adjust for wall heights, you can do this on any size wall.
Try experimenting with various column and spandrel combinations to get different looks
This method also makes an interesting way to divide up a large space or add definition to an area.
See what you can come up with and have fun building!