Differentiate between standard voucher match vs PO voucher match

Our AP Manager would like her people to approve and post their own AP batches when they are a 2-way or 3-way match, but not when the batch consists of standard vouchers.

Have any of you run into something like this, and if so, how did you handle it?

Is there a way to have a different doc type for each? (If so, does this present any challenges?)

Is there a way to have a different batch type for each? (Again, if so, does this present any challenges?)