Favorites and top coupon

Hello,

1. How we active favorites and how to use it ?
option in my account but i don’t find where user use favorite in site (click)

2. How to display number in page categoy coupon
my code is : [CATEGORIES count=true]
> info : in widget list category we have count

3. How to do to display in page the top 10 of coupon for example
(with shortcode or in class php)

4. How to display in coupon, number of view or click ‘get a code’

Thanks )