How to create Billing at the end of each month from a Service Contract?

Hello Experts,

I am creating a service contract in S4 Hana cloud 2108 and the settlement period I have chosen as Quarterly but I cannot find the below option for the Billing Date:

To Last of the Month (Billing Date).

I can, however, find : To First of the Month (Billing Date)

But our requirement is that for every quarter all the billing dates will be at the end of month. S