Using Class Sync with Relume Style Guide Client-First v2.1

Hello everyone. One simple question [I hope]: Do I use the Chrome extension “Class Sync” on or off when I am updating an old project to Relume Style Guide Client-First v2.1? For context the old project is on Client-First V2. I have understood I should delete the old Style Guide and then after cloning the style guide project, select the Style Guide page and then selecting and copying page-wrapper .