display "sites" in BP member's menu for members with "ProSites" ?

Check out the screenshot.
It is from a BP theme i was looking at from themeforest.net

It shows a link in a member's menu showing "sites".
The theme mentions nothing about "multisite" or any reference to that specific icon.

But it got me thinking.
Does BP generate this automatically if it is on a WP multisite ?
I am testing out BP on a multisite and see this option nowhere.
Does the "Prosites" plugin give this option/integration with BP ?

Basically the idea is,
if running BP on a multisite,
members or groups can show/advertise/indicate that they have a website(as part of the multisite) and offer a link to it.

Any kind assistance in this would be greatly appreciated.

kind regards,

RC.