"chat" plugin as a BP membership/prosites level ?

i selected "membership" plugin for this support question but it could have been "chat" or possibly even "pro sites" i am not sure.

question is, can "chat", specifically for BuddyPress, be used as a paid/upgrade option like how it is said "membership" can control access to BP groups and blogs ?

i see also that "pro sites" can limit group and messaging creation.

in other words allow free access to the BP community for accessing "members", "friends", "forums" etc. but NOT "chat" (no access to chat in BP) and then a paid "membership" or "pro sites" would allow access to use live group and personal chat with members.

I hope i have described myself properly.

Any kind assistance in this would be greatly appreciated.

kind regards,

RC.