Map Account differently for its respective Debit/Credit Entries

Summary:

I'm looking into Oracle Fusion Accounting Hub, and trying to understand how best to configure some specific elements.

Content (required):

For a single source transaction, I would like to post the debit and credit entry to a different account.

I can do this at a basic level, by just defining two journal line rules, a debit and a credit, with a different accounts.

However, I would like to map my source account segment to the ledger chart of accounts, and a different Ledger account, depending ont he source account. In order to do this for each of my event types, I'm ending up with a mapping set per event per dr/cr - IE, a lot of mapping sets.