Macros

I have an idea, maybe someone already suggested it but whatever :P So my idea is that Riot should allow macros in game. The ones that you can put in by yourself, for instance u can bind idk, f1,f2 or smth like that, and put a sentence that will be written in chat, like Enemy no Summs, or Warded... Ofc i know some people would probably abuse it.. But it can be restricted to 3 times in one minute same as pings and such. I believe that would be really effective and make game easier, because some people are really slow at typing in game, specially if u are still on lane, when u stop to type u can lose creeps or maybe get caught by enemy when you are busy writting. :D