Can I Copy Item Sets?

(I don't think this is really about Maps or Gameplay, so I put this thread in the Miscellaneous board. Hopefully okay...)

Hello fellow summoners and possibly Rioters.

I have many Item Sets (if you call a 30-ish "many"). I have at least 1 for every champion I can play. Each Item Set is assigned to 1 champion and 1-3 maps depending on the role (e.g. you don't need a Jungler in the Crystal Scar). And the first 2 blocks (Consumable Items and Trinkets) of every Item Set are just like the image below (unless it is for ).

When I find another champion to play, I build an Item Set for him/her. I almost always build the first 2 blocks like that image, and sometimes build a similar Item Set to one I already have had (for example, 's Item Set is just 's plus and , and many Item Sets for Marksman champions look somewhat alike).

I wish for an option to Copy an Item Set, creating a new Set with the same assignments, blocks and items, and an almost-same name as the original one. This would make building Item Sets easier. Copy-Pasting a block to another Set would be good too.

The same idea can go with the Runes and Masteries too. I also care about them.