Any examples using hover to callback to text outside of plot?

I have a nice visualization of a compute timeline for a distributed computing project. The hover tool can show the line of code nicely but out of context.
I would like the hover tool to also highlight and (scroll/center) a reference link from that datapoint in the graph to a frame with the relevant code.

Ideally it would scroll/highlight that line of code in a frame alongside of the plot.

I looked at embed and other options but I was hoping for more of a ‘stealable example’ if anyone has one.