Player pings are coming to the game in Patch 10.1.7 so we’re looking at the Ping system in more detail.
The new ping system lets you quickly communicate with other players without having to use voice or text chat.
Holding G + Left Mouse Button opens up the ping wheel where you can quickly call out commands (Attack / Assist / Warning / On My Way).
You can also send contextual pings by holding G and clicking an enemy, NPCs, the ground, or unit frames.
If you have the G key bound to something else, the ping function will be unbound in key bindings.
Ping commands also have macro support the new /ping command has been added to support the system.