public function set($key, $value) {

        $keys = \explode('/',$key);

        if (\count($keys)>5) return false;

        switch (\count($keys)){

          case 1:
            $this->registry[$keys[0]] = $value;
            break;

          case 2:
            $this->registry[$keys[0]][$keys[1]] = $value;
            break;

          case 3:
            $this->registry[$keys[0]][$keys[1]][$keys[2]] = $value;
            break;

          case 4:
            $this->registry[$keys[0]][$keys[1]][$keys[2]][$keys[3]] = $value;
            break;

          case 5:
            $this->registry[$keys[0]][$keys[1]][$keys[2]][$keys[3]][$keys[4]] = $value;
            break;
        }

        return $this;
    }