Pay Through Date vs Include Only Due in EBS

In the PPR in EBS, there are two fields, one is Pay Through Date and another is a check box to Include Only Due.

The Pay From Date & Pay Through Date : Date range with which you want to Pay the Due payments. Pay From Date is optional which Pay Through Date is mandatory.

The Pay Through Date is already only selecting to pay due invoices for payments. So what is that Include Only Due checkbox for? I tried checking for documentation of these two but only from the Pay from and through date. Any ideas what is the different between these two and what are the use cases. Thank you.