Save the ID of copy field to new field option
add_filter(‘frm_after_duplicate_field’, ‘frm_save_id_duplicate_field’, 10, 2); function frm_save_id_duplicate_field( $args ) { $new_field_options = $args[‘values’][‘field_options’]; $new_field_options[‘copied_from’] = $copy_field->id; FrmField::update( $field_id, array( ‘field_options’ => $new_field_options ) ); }Continue reading