Yes, you can do this. In auth_config.php change the first bit of coe to look like this:
if ($static == true){
$xerte_toolkits_site->authentication_method = 'Static';
}else{
//$xerte_toolkits_site->authentication_method = 'Guest';
$xerte_toolkits_site->authentication_method = 'Ldap';
//$xerte_toolkits_site->authentication_method = 'Db';
//$xerte_toolkits_site->authentication_method = 'Static';
//$xerte_toolkits_site->authentication_method = "Moodle";
}
Then in library/Xerte/Authentication/Static.php, create a username ./ password in this bit:
/** Edit this list to your hearts content ... */
private $_users = array(
'osls_admin' => array("username" => "USERNAME", "password" => "PASSWORD", "firstname" => "OSLS", "surname" => "Admin"),
);
And then those uses can log in via management.php. We do it here. I think that's all you need to do. THe only slight drawback is having to get those users to login via management.php, rather than the normal /xertetoolkits index page.