code: public function setKeyTitle($class, $column, $title)
      {
  
          $class = ltrim($this->getClassName($class),'\\');
          $this->manualKeyTitles[$class.'|'.$column] = $title;
          return $this;
  
      }
docs: Set a manual key title. Overwrites the translated titles, so you have to
  handle translation yourself
  
  @param string|object $class
  @param string $column
  @param string $title
  @return self