I ended up creating custom add and edit pages.
I am trying to have more than one drop down in the edit and add sections but when I add one then the other doesnt work. $tabledit->lookup_table = array( 'product_tax' => array( 'query' => "SELECT `tax`, `tax_text` FROM `tax_rate`;", 'option_value' => 'tax', 'option_text' => 'tax_text' ) ); $tabledit->lookup_table = array( 'product_type' => array( 'query' => "SELECT `type` FROM `product_types`;", 'option_value' => 'type', 'option_text' => 'type' ) );