On Mon, Oct 29, 2012 at 7:50 PM, Roger wrote:
<snip> So use the alter hooks to add another field.</snip> I would really like to understand how to do this, it may solve a number of issues. So it is with settings.php and sites.php, I have only basic understanding of these.
Go to http://api.drupal.org and type alter in the search box. You will be presented with a number of API items in a list. The ones beginning with hook_ are the documentation for what you can create with a custom module. The ones that begin with a module name are an actual implementations of the hook. Review http://api.drupal.org/api/drupal/includes%21module.inc/group/hooks/7 for a list of all available hooks.