To start a new branch of our common tree that is not directly linked to someone you already have in our common tree, go to the Recents menu and at the very bottom of it choose "Add Unconnected Person."
As discussed above, this is still in the same database we all are working in together and in this new branch you are starting you must not create any duplicates of people that are already in the database. Only use the records that already exist in the tree along with any new people you are adding.
There are no private trees in FamilySearch/Family Tree.
Family Tree is a little different from other similar sites in that it is a single tree linked together in families, rather than a site that allows users to create and manage their own private trees. This difference means that everyone works together on the same data, allowing for the potential to connect every member of the human family.
These knowledge articles will help you better understand this shared working environment. and how that compares with other software that provides a 'private tree' model if that is what you are looking for:
Some people like to work in the shared community of FamilySearch where they can share research, and also keep a private tree on a partner site. This allows you to refer back to your research if any inaccurate changes are made in the shared tree. There are benefits to using both these approaches.
Something to think about. If you are working on separate sections of the Tree, you might want to change the starting person, which can be changed in your settings whenever you want. The article link below will explain the process.
We wish you success in your work on Family Tree.
Using a third party software may also be helpful in your situation, for example if you wanted to have a tree for your daughter in law's family as well as for your own. Or perhaps you want a separate tree for your mother's family and one for your father's family. Some of these third party software programs have a free version or free trial.
You may want to check with friends to see if any of them have used one of the software programs. We are not able to suggest programs to you but it may be helpful to know that several of the workers on FamilySearch use one of these programs. Good luck with your choices. Full versions of the programs can cost about $25 and the cost is a one time fee.
Good luck in sorting out the information you have been given if one of the answers gives the answer you were looking for please click yes under the answer.