How to load music in hard drive?

I have a '15 M235i with the HK system and standard iDrive.



1. Do I even have a hard drive in the system? Is that standard?

2. How do you get music into the hard drive? I read my manual but my screen in iDrive looks different than the one pictured in the manual.



I copied my music off of iTunes and loaded it on a USB. It's about 14G. Plugged that in the USB port in the armrest and I can play off of it but want to get it loaded into the hard drive. But I'm stuck now.



Thanks in advance for any guidance.



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