code: public function findActionByName($action)
      {
          $actions = $this->owner->getBetterButtonsActions();
          $formAction = false;
  
          foreach ($actions as $f) {
              if ($formAction) {
                  break;
              }
  
              if ($f instanceof CompositeField) {
                  $formAction = $f->fieldByName($action);
              } elseif ($f->getName() === $action) {
                  $formAction = $f;
              }
          }
  
          if (!$formAction) {
              $utils = $this->owner->getBetterButtonsUtils();
              $formAction = $utils->fieldByName($action);
          }
  
          return $formAction;
      }
docs: Gets a FormAction or BetterButtonCustomAction by name, in utils or actions
  @param  string $action  The name of the action to find
  @return FormAction