Multiple Availability Groups under one Listener

Hi,

Not sure if doing this is right or even required. I was just wondering if it's possible to have two availability groups under one listener.

I have AG1 and AG2. I created Listener1 and mapped it against AG1. But when I went on AG2, I cannot select Listener1, it doesn't appear at all.

Is this by design or I'm missing anything here?

Any help in this matter is appreciated.

Thanks
Mayur Kashikar