Client updated to multitask?

since new spectator mode i have wished that the clients capabilities could be upgraded to multi-task

it would b so cool if i could spectate a game while mini casting it to my friend, group, ranked team, etc. even better if i could toggle the spectator mode size similar to nikasaurs videos, so i could watch and chat effectively at the same time.

feel free to contribute other things you want the client to do aswell