How to force MM invoicing plan invoice creation on work days only

Hi Experts:

We run RMMR1MIS in batch Mon-Fri. This program/transaction has no way to enter dates into the variants. This causes us issues when the invoice date on in an invocing plan falls on a weekend. For these that have dates on the weekend, our job on Monday night creates the invoices. This impacts the baseline date on the resulting invoice and hence the payment date. Effectively, payment can be delayed up to two days because of this.

Is there any way to get plans with invoice dates that fall on Sat/Sun to get created in the Friday night run of RMMR1MIS? Can I somehow use the Calendar ID feature in the Rule Table for Date Determination: Invoicing Plans?

Thanks

Lisa