PS 1.7 -> Product thumbnail HOVER instead of CLICK?

[Kaper]

Hello,

 

I am bulding new shop on 1.7 version, but i would like to change how the cover image is changing.

 

As you can see in demo: http://fo.demo.prestashop.com/en/tshirts/1-1-faded-short-sleeves-tshirt.html#/1-size-s/13-color-orange

The cover image will change after the CLICK, in 1.6 is hover effect, which me and also customer prefer more. 

 

Can anyone help me, how can i change it to make the image change after hover the thumbnail?

 

Thank you so much community