Modifying original shortcodes

Use su/data/shortcodes filter to modify original shortcodes. You can find default shortcodes in the /wp-content/plugins/shortcodes-ultimate/includes/shortcodes/ folder.

Use the following code snippets in the functions.php of your theme.

Example (modifying attributes)

add_filter( 'su/data/shortcodes', 'add_custom_button_style' );

/**
 * Filter to modify original shortcodes data.
 *
 * @param array   $shortcodes Default shortcodes
 * @return array Modified array
 */
function add_custom_button_style( $shortcodes ) {

  // Remove all default styles before adding custom one
  $shortcodes['button']['atts']['style']['values'] = array();

  // Add new button style
  $shortcodes['button']['atts']['style']['values']['custom-style'] = 'Custom style';

  // Remove target attribute
  unset( $shortcodes['button']['atts']['target'] );

  // Return modified data
  return $shortcodes;
}