I'm going to move this thread from the FileMaker Community Feedback Space, which is specifically for input on the Community itself, to the Discussions Space where you should receive even more views and potentially more advice!
Looks like you left out the table occurrence name as you make no mention of it:
Set Field By Name [ "YourTableOccurrenceName::" & $Current_Response_Field_Name ; $Current_Response_Text
But I'd be inclined to set up a table of related records where two fields record both values in a set of related records. That approach is more flexible and won't break if someone goes into Manage|Database and renames something.
You can use script step Set field by calculation and calculate where you want to store your information
I found the answer - or rather FM Tech support found the answer. My approach was correct, but I had a syntax error. The Table Occurrence name was styled as TO1:Referrals. The colon in a TO name sometimes causes errors - per FM.