Is there a way to control how FSG's are processed? How would we setup a specialized manager to run a

We have setup an specialized manager called FSG_report_mgr to which we added the requests Financial StatementGenerator, XML Report Publisher, Program - Publish FSG Reports, and Program - Run Financial Statement Generator. We have asked our financials team to schedule their FSG's at night if possible. The issue is that even though they have them scheduled, there will be so many that they will overflow the FSG manager and start taking up all the processes in the Standard Manager, resulting in processing for our nighttime inventory staff to be delayed.

Have we specialized the correct requests? What other steps can we take to try to control the FSG's to remain within the FSG manager?