What I miss about the old League of Legends Client

In the old Client when you were using the search bar to search your champion you could seperate multiple names by using "|" and it would list these champions.

For Example you would type "Riven|Yasou|Teemo" into the search bar and it would only list these champions.

It was very helpful for listing your champion pool that you are going to play. Being able to favorite Champions is a good feature, but where's the problem with the old feature, why did they remove it?

Feel free to leave a comment and discuss this topic.