About configuring whmcs multisite remote provisioning plugin

I am unclear about where to place the whmcs modules' addons and servers. The illustration is pretty small on my screen and hard for me to see. The instructions say to place them in the modules folder under my whmcs installation. I have installed the whmcs-multisite-remote-provisioning plugin, and I find the modules folder under "whmcs" folder as it is installed originally with the plugin. Exactly where do I place the addons and servers folders?