Here it found the TRACK = 5, I move my file to line 5 to assign it to the correct track but if Mp3tag could read out that the album has a total of 7 tracks it might be possible for it to automatically add that at the end of the track field (i.e. "5/7" instead of just "5")? It would save a lot of time by not always having to manually set track data in the track number assistant (Cmd+K). I can see that it might mess things up a bit in some cases, but as an optional switch would be cool.
I am not sure where you want to specify the "contains".
The filter function already has HAS as keyword
Sorry, I was unclear, I meant 'contains' as a scripting function, something like $if($contains(%mediatype%,'Compilation')$set('Compilation','1') (this syntax is surely completely broken but I hope the meaning of it is understandable. To allow full automation.
But using the filter as you suggested is a good compromise (even if it's manual it saves me a lot of time) if my idea is not possible.
In general: the data provided by tag sources is usually beyond the control of MP3tag but relies on the community that maintains the tag source.
This I understand. I just hoped maybe it would be possible for Mp3tag to "read out" the blue marked "7" in my example even though it is not a tag field because it is the last number in the list. The Cmd-K assistant is great but does not help in my example, it only works if I tag a complete album with all tracks available. It breaks if there is one or more tracks missing.