Bitrix24\Im\Attach\Item\Grid::addColumnItem PHP Method

    public function addColumnItem($name, $value, $width, $color = null, $link = null, $chatId = null, $userId = null)
    {
        $this->arGridItems[] = array('DISPLAY' => 'COLUMN', 'NAME' => $name, 'VALUE' => $value, 'WIDTH' => $width, 'COLOR' => $color, 'LINK' => $link, 'CHAT_ID' => $chatId, 'USER_ID' => $userId);
    }