How to run a report for all MEMOs in sales order?

We have added memos to our sales orders to indicate an action outside of Sage 100 is in process (a review by our quote department).  I would like to be able to run a report to show all the orders that have this memo on them but I can't find a way to do this.  In AP there is a Vendor Memo Printing in reports that does this for AP.  If there someplace or way to do this for Sales Orders?