[mlaggner]

oh I forgot to mention:

in the past releases I did not store the tmdbid for moviesets inside the movieset.. the same goes for automatically created movieset (during importing)

but you have an option to assign the tmdbid: get the movieset metadata by doing a search (and finally assign the new metadata by clicking ok).
I will have to find a "better" way to get the tmdbid for a movieset (just give me a day)

if you choose a local file, the file should be copied to all movie folders of assigned movies (movieset-fanart.jpg; movieset-poster.jpg) - I did not try this at home