You can create snapshots from smart codes and smart groups.
Creating a Snapshot Code
Open the Code Manager and select a smart code. Click on the button Create Snapshot in the ribbon.
The default name for the snapshot code is the name of the smart code plus the suffix [SN 1]; [SN 2] if you create second snapshot code of the same smart code and so on.
Creating a Snapshot Group
Open the Group Manager either by selecting the option in the ribbon of the respective manager, or from the drop-down of the entity type button in the Home ribbon.
Select the smart group and then Create Snapshot from the ribbon.