BuddyPress.org

BP Group Management is not really meant to do this kind of thing. The easiest way to do it is with code, something like:

`
function bbg_promote_user_in_all_groups() {
global $bp, $wpdb;

if ( is_super_admin() ) {
// user id of the member to promote
$user_to_promote = 75;

// IDs of the groups you want to skip
$group_exceptions = array( 3, 12, 133, 832 );

$all_groups = $wpdb->get_col( $wpdb->prepare( “SELECT id FROM {$bp->groups->table_name} ) );

foreach( $all_groups as $group_id ) {
if ( in_array( $group_id, $group_exceptions ) ) {
continue;
}

$member = new BP_Groups_Member( $user_id, $group_id );
$member->promote( ‘admin’ ); // also accepts ‘mod’
}

}
}
add_action( ‘admin_init’, ‘bbg_promote_user_in_all_groups’ );
`

This is untested and off the top of my head, but should pretty much work. (Test it by adding to a plugin file or bp-custom.php, then visiting the Dashboard as super admin. Make sure to comment out the add_action() line when done, so that it doesn’t run every Dashboard page load!) It’s possible that this function will time out on your live server, in which case you may have to introduce a little logic for only handling a smaller number of groups at a time, and then run it multiple times.