Be able to report on multiline text fields

As a library admin I want to be able to report on multiline text attribute so I can get more granular data out of OpenAthens.

If you have a text custom schema attribute such as:
coursesEnrolled

where it can contain a value like:
"Math, Information Technology"
Currently that shows in the reporting as is, one string.

But if the attribute was sent into OpenAthens the other way around:
"Information Security, Math"
OpenAthens counts this as its own string in its own right, because it is. The two strings are evaluated as separate reporting points in the reporting system.

In the Schema editor you cannot mark a attribute as reportable + multiline. Therefore this Feature request.