Get a exact copy of any community into a new slot. It will have all the same survivors, enclaves, inventories, supply locker and more. 
 
All survivors will be copied into your new save, exactly how you had them before. 
 
Your supply locker will be copied and the exact same, all of your weapons, consumables, and more will be the same. 
 
All of your vehicles will be right where you left them. Including all the cars on the map.
 
Note: This needs to be installed on your account manually, I will need your account information.