Vortex Sound Research

Hey folks! I've been searching around for good tutorials on the plugin Dexed, the popular free DX7 emulator, and I'm not really finding any that go into very much detail.

I mostly get how it works but I'm finding its envelope generator interface confusing, and I'm sure there's plenty of other rad functionality I'm missing. Anybody know a good video series or other guide to Dexed?