Allow us to customize our pings or add more pings

Hello,

I am a Shen main and most of my kit relies on having good communication with the team. We have 6 pings now:

1. Need Assistance,
2. Enemy missing,
3. On my way,
4. Danger,
5. Enemy ward here.
6. Fall back
7. Ping that I have ult ( this one does not have a visual effect)

Now, some people will use these quite efficiently but 90 % of the people will not. The problem is when using " on my way" and "need assistance" my teammates will not understand when I want them to initate so I can ult them. It would be nice if you could allow us some customization. Like "Please initiate".