product variations price and stocks is supported ?

-- HikaShop version -- : 3.0.4
-- Joomla version -- : 3.4
-- PHP version -- : 5.4

hi i need to know if the current store supports product variations and stocks, prices because i added on my store products, but i cant see where i can found these options. i need your help and tell me if i need to buy another exetension o plugin.

im very confused woocmerce come with this feature this component supports ??