By default, the platform does not have this option. You can use the following function code to set descending order for Forum Discussion replies.

Please follow the steps below:

1. Go to Appearance > Theme Editor.

2. Under “Select theme to edit”, choose (BuddyBoss Child/whatever theme is active), then click “Select”.

3. Below Theme Files, select Theme Functions (functions.php).

4. Append the code just before the closing PHP tag “?>”:

add_filter('bbp_before_has_replies_parse_args', 'buddyboss__change_replies_order');
function buddyboss__change_replies_order($r) {
  $r['order'] = 'DESC';
  return $r;
}

5. Click “Update File” to save the changes.

Note: Any modifications are considered as custom work already. Know more about our Support Policy here: https://www.buddyboss.com/support-policy/