I am using the organic groups module which adds a field with machine name: group_audience to the user entity which can be seen at:
Somehow after install some other modules, this field disappeared. I would like to add it back the field's machine name was simply group_audience instead of field_group_audience.
When I try and create a new field with the Drupal 7 interface builder it always prepends field_ to any field that is create. How can I create a field that does not have the field_ prefix?