Ping Missing From Scoreboard

In the scoreboard (tab) you can see exactly which champs your team has vision of. If your team doesn't have vision of somebody, the area around their portrait thumbnail darkens and there is a question mark.

I think It would be cool if we could ping that. If the enemy is not visible, then it tells your team, in the chat. (similar to pinging mana, abilities, or gold) If your team does have vision of the enemy, then pinging would tell your team that they are no longer MIA. If they are dead (Your team saw them die, so jungle executes don't count) then it tells your team that they are dead. Currently, you can't ping the question mark, but you can ping their portrait, which it tells your team if they are alive or dead. However, I think that knowing whether or not you have vision of someone is more useful.

It would be helpful because you can notify your teammates exactly who is missing, whereas the "missing" ping only shows a general location.