Finally, a solution...
provided by Jeff over at DPreviewMedForum
JALcomputing. Thanks so much, Jeff.
It is very hard to use the back dial without accidentally press clicking the back dial and triggering Focus Zoom. You can disable the press click on the back dial.
How To Disable the Back Dial Focus Zoom
1) Press Menu
2) Utility
3) Button/Dial
4) Fn Setting
5) R-Dial
6) None
Now you can use the back dial without fear of a focus zoom. I reassigned focus zoom to another button.
That made my month...
cheers, Stephan Zobeley