Runes Reforged: Focused champion pages

For item sets, we have the option to focus these sets on an individual champion & map.

However, for masteries, we do not have this choice. This makes it very cluttered in champion select if you have lots of masteries. With Masteries & runes merging together, this is going to become even more cluttered (because players will most likely have even more pages).

I wanted to make this post to suggest the option to specialise in a champion, champions, champion class or lane (in Draft/Ranked), as well as map. For example if you have a mastery that specifically caters to Jinx, there's no point having it as an option when choosing different champions. It just makes it harder to find the mastery you actually want. Or, if you have a mastery that caters to a general playstyle for example a caster support mastery that works for Soraka & Morgana, then there should be an option to make these available to only those two champs. Or, if you have a general mastery for fighters, there should be the option to only be able to choose it when using a fighter. Or in-Draft, if you're stuck in Mid lane, then a general mastery for Mid lane you've made if you don't really know how you specifically want to mid-lane.

& these masteries only become available after locking in. Of course you can opt to not specify, & then the mastery would show up before locking in if it's not specialised to any role.

But I think this mechanic would make the system a lot less cluttery & more organised. Like how you don't have to scroll through thousands of item sets you've made.