whmcsKerioEmail/app/UI/Client/Setting/Buttons/InfoButton.php

<?php

namespace ThurData\Servers\KerioEmail\App\UI\Client\Setting\Buttons;

use ThurData\Servers\KerioEmail\App\UI\TaskHistory\Modals\InfoModal;
use ThurData\Servers\KerioEmail\Core\UI\Interfaces\ClientArea;
use ThurData\Servers\KerioEmail\Core\UI\Widget\Buttons\ButtonDataTableModalAction;

class InfoButton extends ButtonDataTableModalAction implements ClientArea
{
    protected $icon = 'lu-zmdi lu-zmdi-info-outline';

    public function initContent()
    {
        $this->initIds('infoButton ');
        $this->initLoadModalAction(new InfoModal());
        $this->setDisableByColumnValue("selfdns", "0");
    }

}