I set up a family tree for a friend. How do I make it independent
Welcome to the "Community.FamilySearch" Forum.
I am just another User/Patron ...
As long as you DID NOT connect, your Friend's "Ancestral" Line, to your "Ancestral" Line; then, it will already be independent.
The best thing to have done would be to create your Friend as an "Unconnected Person"; and, work from you Friend.
IF, you "linked"/"Connected" your Friend to you somehow, you will need to "Detach"/'Sever" that "Relationship".
I hope this helps.
I assume you have run into the problem that when you created your friend and his living relatives they all have the yellow bar at the top warning you that only you can see them.
This is due to the privacy regulations and laws of various countries that FamilySearch must follow. They do have programming in the works to create family groups which people can set up to share information about living people but they have given no indication when it might be released, only that they are nearly ready to test a small part of the function of such a group.
At this point, as the banner states, there is no way for your friend to see the information of any living relative you might have created. He will have to create his own account, re-create all the living people and link them properly to any deceased relatives that you created. He will be able to see any deceased relative, just like we all can.
To make the process a little quicker, you could try getting one of the desktop programs that can sync with Family Tree such as Roots Magic or Ancestral Quest. The free version should work just fine. Set up a file and pull from Family Tree just him and his living relatives, including as few deceased individuals as you can. Then after he has opened a FamilySearch account, use that external version to add those living people under his account. You'll have to fiddle around to figure out how to disconnect the syncing to your account and set it up with his. I will admit I have never tried this but there should be some way to do this.
I assume you created the friend's ancestors tree by using yourself as the descendant, as if you were your friend.