You must use [StructuresPlus] not [S+] . If you use [/Script/ShooterGame.ShooterGameUserSettings] incorrectly, the mod ignores it.
If you find that the storage isn't pulling items from your inventory automatically: Add Primal Fear Resources To S Dedicated Storage On Ark
However, because Primal Fear uses custom item paths (Blueprints) for many of its resources, simply dragging and dropping items often doesn't work, or the S+ snapper might not recognize the stack. This guide covers the methods to force these items into your storage system. You must use [StructuresPlus] not [S+]