Please add a feature that auto applies last used runes/masteries for chosen champ

Please make it so whenever you select a champ, it automatically selects the last runes and masteries used with that champ. I usually go Ahri and don't normally select runes and masteries because they're on the right ones but when I switch to Ashe for example, I will change them to suit her but when I go back to Ahri, I don't think to change them back because I'm used to just selecting Ahri and hitting play. My brain doesn't make the connection from "I played Ashe last game, so this time I have to change back to mage runes". This more often than not results in a no-win situation unless the enemy has done the same or there is a wide skill gap in my favor.

So please make it so we never have to change runes/masteries again by auto applying the last one used for each champion.