In case that last response was too brief or cryptic...
On Retail POS->Store->Settle Credit/Debit Transactions window, all transactions approved for settlement are listed but remain unsettled. As with an online (eCommerce) authorization->capture transaction, if we could change each item subtotal that had a gratuity added to the subsequent transaction total, then settle the transaction, our problem of not receiving tips for our baristas would be solved.
We require a POS-, not RMS-, workaround that will provide us with this capability. The system was sold to us a a perfect match for a small coffee shop POS solution; however, this small feature being absent is greatly impacting our employees' tip income.
Migrating to a more full-featured solution would be a substantial monetary hit (migration, setup, testing, training, etc...) that we would like first to eliminate any possibility that this system can succeed for us.