This is a very easy tool, just follow these few steps
1 – Click on Add-in from Revit toolbar
2 – From the installed tools list, select Family Oroganizer
3 – Family Organizer main screen will pop up
Path Source: is the folder where you families (*.rfa) as stored.
Path Destination: is the folder where you family organizer to save the result.
4 – To add more file to the list, please click on the link “Add”