How to parameterize QB table-to-table Imports

Yes, its a super powerful technique and requires no javascript.  Normally the user is launching off a record and what I do is to have a formula which check if the user has been created in that user table.  If not, then I create the user, else edit the user to record some parameter(s) which are now known as a result of he user sitting on a record when they click.

Then the lookup fields recalculate and the API_RunImport is run.