'My Custom Field', 'edit_options' => array( //Optional - An array of options to show within the field edit

. Should be an array of arrays. array( 'type' => 'text', //Required - What type of input should this be? 'name' => 'my_text', //What should it be named. This should always be a programmatic name, not a label. 'label' => 'My Text Label', //Label to be shown before the option. 'class' => 'widefat', //Additional classes to be added to the input element. ), array( 'type' => 'select', 'name' => 'my_select', 'label' => 'My Select Label', ), ), 'display_function' => 'ninja_forms_field_upload_display', //Required - This function will be called to create output when a user accesses a form containing this element. 'sub_edit_function' => 'ninja_forms_field_upload_sub_edit', //Optional - This will be called when an admin or user edits the a user submission. 'group' => '', //Optional 'edit_label' => true, //True or False 'edit_label_pos' => true, 'edit_req' => true, 'edit_custom_class' => true, 'edit_help' => true, 'edit_meta' => false, 'sidebar' => 'template_fields', 'edit_conditional' => true, 'conditional' => array( 'value' => array( 'type' => 'text', ), ), 'pre_process' => 'ninja_forms_field_upload_pre_process', 'process' => 'ninja_forms_field_upload_process', 'req_validation' => 'ninja_forms_field_upload_req_validation', ); //Register the Upload field add_action('init', 'my_custom_field_register'); function my_custom_field_register(){ $args = array( 'name' => 'File Upload', 'edit_options' => array( array( 'type' => 'text', 'name' => 'my_text', 'label' => 'My Text Label', 'class' => 'widefat', ), array( 'type' => 'select', 'name' => 'my_select', 'label' => 'My Select Label', ), ), 'display_function' => 'ninja_forms_field_upload_display', 'sub_edit_function' => 'ninja_forms_field_upload_sub_edit', 'group' => '', 'edit_label' => true, 'edit_label_pos' => true, 'edit_req' => true, 'edit_custom_class' => true, 'edit_help' => true, 'edit_meta' => false, 'sidebar' => 'template_fields', 'edit_conditional' => true, 'conditional' => array( 'value' => array( 'type' => 'text', ), ), 'pre_process' => 'ninja_forms_field_upload_pre_process', 'process' => 'ninja_forms_field_upload_process', 'req_validation' => 'ninja_forms_field_upload_req_validation', ); ninja_forms_register_field('_upload', $args); }