Such an easy fix...

Ok so maybe I am crazy, but you guys let me know if its happened to you or not. I like to have my runes/masteries rather organized, so all the AD are together, AP, tank... Anyway, lets say I pick up a new champion and they have a special page needed, if I wanted to reorganize to pages to group them together again I would have to delete all the pages after where I wanted to put it and remake them all. Riot has state of the art programmers, and this would take them no more than 10 minutes to an hour to add this simple feature to the game. Maybe it wont affect everyone but Im sure theres many people in the community that would appreciate this feature.

TL;DR: Riot should make it so you can drag and organize your rune/mastery pages. Its a simple fix and wouldnt negatively affect anyone.