Please add zoom to my chart?

My question is listed at.this link Zoomable Time-Stripe on the Observable platform.

Please assist me in finishing applying the zoom functionality to my visualization.

(Even if you give a partial answer it may get me over the hump.)

I’ve sent you a suggestion.

(Please see 📣 Support for Plot, D3 and Framework has moved to GitHub )

After a bit of poking around, this NOOB found your wonderful suggestion.

It works! Now I’ll dive in and find out what you did.