Enhancing Post Game Stats - Adding more detail

So this is my first ever post. So apologies if my formatting isn't great.

What would it take to get more specific post game stats either in after game lobby or even through the view on the web option? Specifically, I want to see more details in champion damage and item specific interaction. I can see my total damage to champions, but which champion was I really hitting? Was my damage appropriately focused in fights? Or was X amount of damage actually focused on their tank? Letting their carries rip the rest of the team apart? Would it also be possible to get damage over time? What damage had I done during laning phase? And then later in teamfights? Also, while we are in game, we can see how much healing we did using items like Redemption or Ardent Censer, but once we hit post game lobby those stats are gone.

If summoners were able to get these statistics, I believe the ones who really dive into it could improve their game that much more. CS numbers and overall damage numbers are great, but they are only the very end of the picture. I would like to see the entire development process.

TLDR: Please more stats that show more specific things that happen over the course of a game.