Acquire Image Tool Properties has a Tag property which is of type object . You can use this property to tag a vision instance in the custom vision tool and retrieve this tag from an allocations script. For example, your custom vision tool might look like this: From within the allocation script, you can access the information as such: Additionally, if the Tag is defined for a LocatedInstance, the Tag will be converted to a string representation and send to V+ as part of the instance information. From within a custom motion sequence program, the tag can be extracted as follows: ACE Reference Guide, 18317-000 Rev A Page 680