Basically, the ability to bind a key to toggle search/pause.

Could be done through the MM window itself or a command like:

bind F1 "matchmaking"
unbind F1 "matchmaking"

It's easy to use and players don't have to click the tiny M in the bottom left corner and choose settings then click search.

Also gives the idea that the MM window could be limited change settings and
users could use their chosen key to search/pause.

If this gets implemented might as well just add binds in general to the game because there'd be no sense having a bind command that's only used for MM.