to join Solidres Guides to a Joomla User Group

Hi guys,
what I mean is to be able to set on backend a Guide Joomla User Group,

so, when the Guide Joomla User Group is set, also in the Frontend the Partner can create a "Guide connection" (to create a Guide) not by typing a Name, but selecting a User from the Guide Joomla User Group set in the backend.

Practically, at the end, there is no a "Guide" creation, but just a "connection creation with the Partner" that will can use those guides on his Experience Time Slots...

PS - This is the same concept on this feature request: to join Solidres Customer Groups to Joomla User Groups
Would be good to see both adeed and maybe they can be merged