Editing Address Book Fields

Dear all,
I would like to edit the ‘Address Book’’ to remove some fields that are not applicable in my setting. While files do I go to?

The screenshot of the Screen I want to edit is shown below.

Regards

The file is interface/usergroup/addrbook_edit.php. There is a lot going on here so you want to be careful with your edits.

@growlingflea thank you very much