When a CiviCRM user adds an activity, there is an option of adding a new contact through a pop-up (instead of selecting a contact). I can't find any documentation on whether/how this form can be customized. I'm also not a programmer.
For the organization I work for, it would be extremely helpful to be able to add a bit more info at this stage (at least the phone number, ideally a few other fields). To do so, do we need to modify code (and if so, where) or is there an easier way to configure which fields appear here (ideally through profile, I suppose)?