I know for me at least, its kinda hard knowing every single one of my 20 pages on both mastery and runes. so what if there was a little warning to tell you when you had 2 of the exact same page? like have the numbers glow red instead of blue when they are the same page.
most people with rune pages has either specific champs pages or pages that can run along with 2 or more champs excluding adc since they use the same page no matter what. But masteries, people tend to have a habit of just making their pages in the champ select, making what page best for the game and champ, unless you're that lazy then you can just make a standard 1 page of each keystone, for example: AD/AP masteries in ferocity Burst/utility in cunning heal/tank/more hp in resolve these should only take up about 7 mastery pages. and easy to navigate.
