How to make address1 field and zip code non required with Address Field module I'm using Address Field module

I want to make it a required field but only the Country and City values. I want to leave the zip code and Address as optional. I don't find a way to configure it like this. Is it possible?

To provide more info, I am using Geocoder to fill a Geofield field. I want it to be able to geolocate with City and Country if only that are provided if also zip code and address are provided use them too.

EDIT: I forgot to mention that if I make the whole Address field non-required works as I want to, but I would like to make Country and City required, another way to look at the problem.
I would use form_alter to hook into the form, identify the form element and unset or make required FALSE 

eg: 

mymodule_form_alter(&amp;$form, &amp;$form_state, $form_id){

  if($form_id == 'xyz'){
   $form['zipcode']['#required'] = FALSE;
   $form['address']['#required'] = FALSE;
  }

}