How can change compare products button

-- HikaShop version -- : 3.2.2
-- Joomla version -- : 3.8.x

Hi Dear
When user add an product in compare list then display compare products button top of the product list page and when user scroll bottom of page can not see compare products button and it's not user friendly because when user select an product top of page and scroll down and select another product can not see compare button or any notification now I want display compare products button in the fix position and display name and image of product in a box and user always see selected product in compare list.
How can do it?
Thank you

we can do it with modify addToCompare function in hikashop.js file.