Can we have the another thumb (secondory thumb)

[aiyub007]

To play the audio within range. I think it could be a great idea to have another thumb to seek from another end.

[suragch]

I can see the user case for that but it's not something I'm planning to implement in the near future.

However, if you're willing, go ahead and develop your idea some more here. What is the exact behavior, including for edge cases. What would the API look like?