Quarterly Payment Terms

A/P Manager is requesting to pay a supplier quarterly at the end of each quarter for all invoices in that quarter. Sounds like a proxy term but not seeing an option to build a proxy term for anything but monthly. I was able to gather all invoices for a single month and push payment out two months but that is not the desired outcome. Are quarterly proxy terms possible (I.e. all Jan, Feb, Mar invoices due Apr 1)