Suggestion for a ping feature: Drag/auto pings

Trying to call that the enemy laner is missing typically requires 3-4 pings in a line where you think they're heading. I think it'd be cool if I could hit my warning ping hotkey(or any other ping hotkey, potentially), then drag my mouse in the direction I think they're going instead of pinging several times. Kind of like an autoping line or path is what I'm getting at, a chain-ping even. Maybe the autopings are deeper sounding when compared to your regular pings. Different sounds do tend to get attention, which I've noticed with the recent distance-based pings. Would like to hear thoughts on the idea.