Please bring back the Item Sets

I think a lot of the LOL community enjoyed having the ability to create their own custom Item sets. I wish this had not been taken away. Now that the Legacy client has been retired we can't create any new Item sets. If I find a good build I would l would like to try online, I now have to alt + tab my way out of league to view the set and waste some of my in game time. The item sets made it easy for me to try new builds and not waste any of the time in League. Please bring this option back soon. I'm hoping some of the League community agrees.

Thanks, Genevieve aka GenBear27