Great! Solution works for me as well. Thank you!
Also I used SFOS terminal locally. Thus I had to change to devel-su instead of sudo (setting developer options in SFOS settings first)
devel-su
chgrp -R appsupport-media_rw Documents/ Download/ Audiobooks/ DCIM/ Music/ Pictures/ Movies/ Podcasts/
find Documents/ Download/ Audiobooks/ DCIM/ Music/ Pictures/ Movies/ Podcasts/ -type d -print0 | xargs -0r chmod g+x
chmod g+rw -R Documents/ Download/ Audiobooks/ DCIM/ Music/ Pictures/ Movies/ Podcasts/
Cheers