Jakarta Patch 9c
Unfortunately, no OOB (Out of Box) behavior currently exists to accomplish this functionality.
Implementing something like this would be a customization. ServiceNow Technical Support Engineers are experts in dealing with OOB (Out of Box) behaviors. Debugging and implementing customizations is not in their area of expertise.
That being said, the ServiceNow Community website is an excellent resource where customers share ideas and assist one another with implementations:
Here is an example article that seems to similar to the desired functionality:
"Trying to query list collector field on Incident form" - https://community.servicenow.com/community?id=community_question&sys_id=6576cfe1db1cdbc01dcaf3231f96191e&view_source=searchResult
Encourage users to search the Community website to see if the functionality they are trying to accomplish has already been achieved by other users as new posts, ideas, and implementations are added daily.