There is a $group variable and it can be used to switch many things
I tried to break "osc_add_hook('item_form', 'osp_item_publish_form')" upload but I think I have to search into transaction the solve of my issue.
// ITEM FEES
if($type == OSP_TYPE_PUBLISH
in function.php
if you delete this string the ad can be publish!
I'm working here...
(($type == OSP_TYPE_PUBLISH && $nGroup < 1 )
Big power "IF" condition!
This work!
I'm to achieve it