I understand this should work. However, from the pinned Beta page (Scrivener 3.0 Beta - Release Candidate 10 (Download Links & Change List)) “Please be sure to uninstall previous betas before installing Beta 12.” That’s how a beta should be dealt with to ensure old files/settings are not carried over to the new beta installation to possibly add carry-over from the previous beta version. Catch-22. I guess my argument is that toolbar customization is preferences and should be stored in with the other preferences. This will allow all the user modifications to be saved and reapplied if needed for any re-install of the program - whether it is a beta or regular release. It makes sense to clear up things in beta releases (as mentioned above), but the preferences shouldn’t modify the base program functionality that much (if they do) to warrant completely clearing them on every install/re-install of the program. They should be cosmetic enhancements/modifications of the default preferences. Right?