We created a GQI AdHoc script to retrieve the total and currently used licenses, along with SRM and expiry dates.  The dashboard runs the script and displays all our DMAs and licenses.  This works well on our Swarming DMS for showing what we are using where, and also our Staging DMS where we have expiring licenses.

Jarno's answer on Dashboard showing DMA active elements and licenses? - DataMiner Dojo pointed us in the right direction.