I would like it if there was a quick way to reset to 100% on the zoom. My suggestion would be double clicking on the current zoom percentage, but perhaps a button with the + and - would be a cleaner way.
(If there is a way to do this, please let me know.)
We don’t have a method currently, but if you post your Feature Suggestion in the Problems and Support category the Glowforge team will see it and can add it to the hopper for future consideration.
(They might not see it in here.)
Or one of the Regulars can shift if for you if you want. 
That would be great. I hate to clutter the forums with the same post in two places.
One of the guys has taken care of it! 
Speaking of zoom, yesterday I noticed + or - responded instantly. Wow, that is welcome!
Thanks for the suggestion! I’ll make sure the team gets it.