Invoices, Receipt and Lockbox

The goal: To use Lockbox FBDI to create a unitary Receipt for all of one particular Customer's Invoices, for one day. Receipt to be Created, but not Applied. Then, when Payment is received every 2 weeks, to use Automatch to apply Cash to the 2 weeks worth of daily Receipts, thus closing the associated Invoices.

We however, need to keep all our other Customers, on AutoApply regime.

How do we go about doing this?