Rockons and permission

hello, i m using plex rockon for music and video and emby for photos and home videos, as i have not found a image client available yet on this nas. they do the job, only thing especially for the photos, when i try to delete files i get permission problems. i’ve installed the rockon with same and only user i have in rockstor i.e. user “matt”. i’ve gone down to the share and changed owner to “matt” for the image folder, and actually even changed the permission to 777 but still cannot delete any files.

anydoby has a clue on how to do this? same is for plex. i download an episode of a series and after watching it would like to delete it from within plex but get same permission problems.

thank you