Replicate and compress part of my music library to a mobile device

hello Guys & Gals
I am very new to Roon, I am wondering whether it is possible with Roon to replicate part of my music library -eg my 2500 preferred songs out of some 11k total- to a mobile device.
Additionally, could I compress these files from original .aiff down to 256/320kbs?

thanks for your insights.

I too am hoping for this. There are many feature request asking to have remote access to our music. It would be nice when flying to have our music. There have been no updates for a while so hopefully they are at work on some big, really big.