see the answer:
Under your name find family groups and press that word and proceed from that point. Name the group and then send invite messages to person's you want in that family group.
yes - that is how you can share info with a family group.
My focus was simply how to even point people at a specific family in Family Tree. . .
(see the link) I was sharing a tip - not really requesting information. but I do appreciate your feedback and yes Family Groups are nice.