Can we have the ability to break down Hextech keys?

Since they are available every S rank, I feel like they will eventually build up a lot, even if you only get a 1/3 fragment.

4 chests max per month. You will also get a key fragment for each of those S ranks. After that, you require 8 more fragments to fully open the rest of the 4 chests.

#So this means that to full open all chests per month, you need at least 12 S rank games (or your premade gets them).

Now, that probably sounds like a lot, but just today (day of Hextech release on NA) I've gotten 3 S ranks (solo not premade). Also, you will only be able to benefit from two of those four chests because you need the essence to upgrade. This means you'll have a lot of shards you can't upgrade.

So... why not have full key's be able to break down? It could just be a little bit, like 100 cosmetic essence. That way people can fully use the system without having a lot of unusable loot!

Thoughts?