Web portal: Identities menu in Data Administrator

How can we add more data fields in the Identities menu, found under Data Administrator/Data Explorer?

When clicking on a user, we can view some info on the user in the Details tab. The default configuration shows only ‘Display name’, ‘Default email address, ‘Manager’ and two buttons; ‘identity is active’ and ‘identity does not pose a security risk’. There does not seem to be a menu in the Administration Portal to modify this pane. Does such a menu exist? Or is there another way to do this?

We are working on version 9.1 and using the angular based web portal.

Regards

Anders Westby