Use support system plugin on a single site not multisite

Hi

(Apologies but I cant download the plugin I need so I cant select it in the dropdown)

I really need to use the support system plugin to give my customers a decent customer experience and have just found out the plugin is only supported for multisite installs. Is there a method to get this plugin working for a single install? I have an elite membership but am a bit gutted to see certain plugins are still unavailable. Any info appreciated cheers