Adding table in backend Persons Management

We are almost ready to start.
Competition starts in two weeks.

So we are trying to finetune it a little.

See image.

In the persons management you see a list of all persons with a selection of some tables like day of birth, position etc.

I changed the name of the field Nickname (pseudonym) into pasnummer.
Every person receives a member number (pasnummer). Unfortunately not the same as the ID number of the system.

In this view we would also like to see to what team a player is assigned to.
Of course this can also be done after a person is assigned to a team.

What file should be edited to make it possible that in the persons management view i can select what team a person is assigned to.
We don't need agegroup, so maybe i just need to change some text.

A little help would be great.

Bitte einen Issue als Wunsch im Github eröffnen.

Gemacht, but:

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