How to organize and tag classical music

[Gerbonb]

First: great program.
The different categories of classical music can be found much better with, par example, the control point Kinsky.

The problem is that I can not find the tag "Composition" in the index.

What does work are the search categories: Artists, composer, conductor, orchestra, etc. And the "group" function works perfectly.
But I prefer to search like this: Composer -> Composition -> Conductor -> etc.

"What I tried: Other tagprogramma MP3tag and Musichi.
For example: Composition - H.075 Requiem Op. 05 Grande Messe des morts (1838)
Still, I can not look at composition.

Logfile gives no error.

One clue is the config file it says:
minimserver.lastIndexTags = Artist, Date, Genre, All Artists, Composer, Conductor, Orchestra

I can not change the file because it rewrites minimserver restart.

Minimwatch leave me alone with the properties:
.autoUpdate
delay start
.logfile
.logPrefix
ohnet.debug
ohnet.subnet
.updateReminder

I don't think the correct property is there.

What am I missing?

I minimserver installed on Synology DS215J and minimwatch on Windows7. Kinksy runs on an iPad.