Link to zoom to a defined portion of a map

I have a map of our 100 mile endurance run, https://caltopo.com/m/08BPVB3#

Right now I want to send a link to a small portion of that map to promote a training run on that portion of the course.

I would like the ability to share a URL for a line, that causes the map to zoom to that line like what I see when I click the line name in Caltopo.

I would like the ability to share a URL for a waypoint, that causes the map to zoom to that waypoint like what I see when I click the waypoint in Caltopo.

I would like to zoom in on the map to some arbitrary location and zoom level, and 3D tilt settings, whatever, then share a link to that view, causing the viewer's map to move, zoom, tilt, whatever, to reproduce the same view.