Please add a hot key combination to execute View->View Reset. Add another set of key combinations to zoom in or out of the canvas. One logical choice would be to follow browser patterns: CTRL+, CTRL-, and Ctrl-0 to represent Zoom in, Zoom Out, and Zoom 100%, respectively.
In the next beta, F will reset to the job (design + stock) and CTRL-F will fit to stock only.
Thank you, Rob! Much appreciated.