Smite Indicator for teammates

Since we can smite champions now, junglers use it a lot in duels, which sometimes make objectives afterward skirmishes dangerous if there's a fed enemy long range champ like ez or caitlyn still around. Can we get a smite indicator similar to our ult indicator (that green light next to their champion icons) to tell our teammates whether it's up instead of typing it out and back pinging. This can extend to all the other summoners. Sometimes people in yolo queue for whatever reason doesn't like telling their team mates what summoner they have off CD when teammates come for ganks. It's more of a team communication thing rather than time keeping like jungle buffs and opponent's CDs.