How to locate your addons Folder
You can find the location of your RapidWeaver addons folder by going to the "RapidWeaver" menu item, holding down "option" and selecting the "Reveal Addons Folder" option.
Default add-on folder Path
The Direct version and Mac App Store version of RapidWeaver stores the Add-ons here:
The Setapp version of RapidWeaver stores the add-ons here:
Setting a Custom Add-ons Location
You can also choose a custom location for your add-ons in the "Add-ons" tab in the "Preferences" window.