Is there a way to make these charts interactive?

[av4625]

I copied the line chart code from the README that has the 3 lines.

Currently running on desktop. When I hover or click on the chart nothing happens.

1. Is there a way to show a spike line and tool tip?
2. If I have 2 line charts is there a way to, hover on chart one and programatically show a spike line and tool tip on chart one and chart two?
3. Can you have two or more line charts above each other with a common x axis like the image, then a spike line could run through them all?