How to change tokenpair within the chart-widget (Youtube Tutorial)

I was following the recent tutorial:https://www.youtube.com/watch?v=wnM6OVw0EvI

I have been able to render the btc/usd chart but i want to change it to eth/usdt within the chart widget (not by manually changing the iframe token details). When i try to change the chart to another token pair the list is just empty. How can i populate the dropdown list.

How can I add this functionality?

@johnversus @cryptokid

responded here:

Closing this to avoid duplicates