Add custom "trakt ID" to metadata

[Mibok 158]

 As i exposed in this post i like the way tvdb puts some movies, specially anime movies within it's series chronological order for example the Konosuba movie is at the end of 2nd season. However since trakt switched to tmdb as their metadata provider many of these movies were moved to their own item in the movies section without any link to the series.

 I was looking for a way to add the movie so it list inside the main series (the easy part), but trakt is unable to scrobble that custom item.

Then i found this topic:

 

 So i have this Feature Request. Please add a field to add a custom "Trakt ID" (more like a custom query really) to the metadata, so we can customize how any item is reported to the trakt plugin. For example in the case of the Konosuba movie i could add the movie to the series using the tvdb id, then in the custom Trakt ID field add "tmdb/532067/?id_type=movie".

 Hopefully making the trakt plugin to report that i'm watching the movie even if i played it from the series library using tvdb metadata.