I dont get it. is this 4 years old?

https://www.facebook.com/apogee.electronics/videos/lets-dance-preset/214822533870225/

I didnt  get it. And I am subscribed. I only see select 5 for $50

thanks. i wanted this for long time.

yes. that is the mystery. i think it just means serial numbers that you register for those products that come with hardware they sell. IIRC, you get free software with their pedals and speakers and so on. but i am not sure.

i find I use IKM saturation-x the most.