Multiple widget for same field? I have defined some extra fields for User information in configuration &gt; account settings &gt; manage fields.

One of these fields is of type List (text) and the widget I have chosen for it is Select List.

I want to display this field using Select List widget in Profile Edit Form but as Check boxes/radio buttons in User Register Form.

How can I do so?
By using form_alter hook you can alter the type of field. I am assuming you are using Drupal 7. The below code will alter the field_working_as List (text) profile field in user_register_form in to checkboxes.

And the same field will show as selectbox in profile edit page. I hope this will help you.

function mycustommodule_form_alter(&amp;$form, &amp;$form_state, $form_id) {
  if($form_id == 'user_register_form') {
    unset($form['field_working_as']['und']['#options']['_none']);
    $form['field_working_as']['und']['#type']='checkboxes';
  }
}