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[WoWToolkit] Backup/Restore UI - UI & Macros - Wowhead Forums
WoWToolkit (UI Backup/Restore & Symlinks) : WoW Tools & Utilities : World of Warcraft AddOns
Disclamer: This tool is Windows-only. It's not an addon but a standalone executable.
You need NET Framework 4.8 Runtime to run it
This software is developed (and shared) free of charge by Naessah@Vol'jin (EU).
Never pay for this software — it’s 100% free and always will be.
It allows you to backup and restore your World of Warcraft Interface and settings (including addons) across nearly all versions of the game.
Additionally, it offers features to create symbolic links:
Between different WoW accounts, to share the same "SavedVariables" folder (game & addons settings)
Between different game versions, to maintain a consistent setup. For exemple you can permanently sync your interface and settings from Retail to Cataclysm Classic or even MoP Classic Beta.