There are navigation buttons at the top of the working window that allow you to switch between drawing-model pairs. There is also a button that you can use to switch between the architectural and framing model.
How to do it
The architectural model is active in the working window:
Click the architectural model symbol to switch to the framing model.
The framing model is active:
Click the framing model symbol to switch to the architectural model.
Why it’s useful
You can quickly switch between architectural and framing models without opening the drawing-model pair menu.