For detailed information about modifying loadable families, see The Families Guide.
Within a project or family, you can edit a loaded family and reload it into the same project or any other open projects or families. Before or after reloading the family into the project, you can save the family to a library with the same name or a new name.

Save. 
(Load into Project). If the family is already loaded into the project, the Family Already Exists dialog displays. Do one of the following: