Please use following example to remove or adding new preferred job categories.
function preferred_job_cat_extra($job_cat){ // Delete existing or default like this unset($job_cat['bank']); // Add new item like this $job_cat['bank_new'] = 'Bank New'; $job_cat['ngo_new'] = 'NGO New'; // return all data return $job_cat; } add_filter('job_bm_rb_filter_preferred_job_cat','preferred_job_cat_extra');