Campaign optimisation using app/site

We can optimise the campaign using app/sites.

How to do it ? 

At first navigate to Tools -> Optimisation -> change the filter called "Optimise by" to "Optimise by app/site name". After coming to this page user will find the site/apps where the campaign is bidding. Optimisation - E.png

If the user scrolls to right user will get few icons, there are three types of icon now. 

Video on how to use campaign optimisation: