Custom Game Lobby Changes

Have you ever decided to create a custom ARAM game with your friends only to find that in the haste of your excitement, after you had created the room, you realized that you accidentally forgot to change the map to Howling Abyss and the game type to All Random? Then everyone gives you the "ughhh" treatment as you hastily create another room with the RIGHT settings? Well to fix that problem, I think that it would be cool if Riot made it to where you could change those settings inside the lobby instead of having to leave the current lobby and then create a new one. It would save so much time and would be so efficient.