Thanks for that. I'll look forward to future firmware updates. I just love my X5, even though I'm havin' serious OTG issues at the moment (see post http://www.head-fi.org/t/727494/x5-otg-issues#post_10729823)
regards
Glenn
I believe that is available in the Beta firmware 2.07...
This is a thread discussing fw 2.0 and in the first post Joe Bloggs wrote that this issue can't be addressed due to firmware coding limitations.
Try here (for the discussion):
http://www.head-fi.org/t/726017/fiio-x5-proposed-new-functionality-add-whole-folders-to-playlist-auto-advance-playback-through-folders
and here (for Beta FW 2.07):
http://www.head-fi.org/t/726023/fiio-x5-beta-firmware-2-06beta-2-07beta-download-and-discussion-all-sorts-of-sorting-improvements
Hope this helps...
Cheers!
-HK sends