Cannot enable carousel option

-- url of the page with the problem -- : www.airsoft-romania.com
-- HikaShop version -- : 2.2.20
-- Joomla version -- : 2.5.14
-- PHP version -- : 5.3.0
Hi,
I tried to use carousel option to display some products, but I cannot enable it (I cannot find it where suppose to be it).
I attached the print screen with configuration.

Regards

Resolved.