File transfer OSMC ==> Volumio

Hi guys, i have question about permissions for copying music from OSMC server to my portable Volumio. When i’m doing it by phone (ES file menager) or via laptop (Debian 8 file explorer) i don’t have any problems. But, when i’m connected to Volumio via OSMC file explorer i cannot copy / paste files.

So, should i add user OSMC to Volumio or change ownership of /home/volumio/music symlink?

Any suggestions?