If the article title doesn't have you excited, I don't know what else to do. You know BIG-IQ centralizes management and analytics of BIG-IP and Per-App Virtual Editions across your enterprise. Were you aware that BIG-IQ can run as a License Manager to simplify more complicated subscription and license pool requirements... for free? Subscriptions, RegKey Pools, offline licensing, and all the other customer requirements made licensing a quagmire that BIG-IQ License Manager can help solve. Below you will find several resources to assist configuring BIG-IQ as a License Manager or just simply manage a few licenses.
Configuring BIG-IQ as a License Manager
This video provides a walk through demonstration of setting up BIG-IQ as a License Manager. If you already have BIG-IQ running as a Configuration Manager, you already have this working. I recommend watching this on Youtube directly.
How to Manage Licenses Within BIG-IQ
This video provides a detailed walkthrough example of how to manage subscription licenses within BIG-IQ. I recommend watching this on Youtube directly.