'Custom field management', 'text_manage' => 'Manage', 'text_add' => 'Add', 'text_field' => 'Field', 'text_delete' => 'Delete', 'text_edit' => 'Edit', 'col_id' => 'ID', 'col_name' => 'Name', 'col_name_help' => 'Only allow digit, alphabet, underline', 'col_label' => 'Display label', 'col_type' => 'Type', 'col_required' => 'Required', 'col_help' => 'Help text', 'col_options' => 'Options', 'col_options_help' => 'Required when type is radio, checkbox, select. One line, one option, format: value|display text', 'col_action' => 'Action', 'col_is_single_row' => 'Display on a single row', 'js_sure_to_delete_this' => 'Sure to delete?', 'submit_submit' => 'Submit', 'field_type_text' => 'Short text', 'field_type_textarea' => 'Long text', 'field_type_radio' => 'Horizontal single select', 'field_type_checkbox' => 'Horizontal multiple select', 'field_type_select' => 'Vertical single select', 'field_type_image' => 'Image', 'col_display' => 'Custom display', ];