Hello bokeh community
I have a figure with multiple line plots in it. My goal is to be able to zoom in on a certain line and add a vertical span by clicking on the line. The span should go through the closest point in my line plot. After that, if I zoom back out again, I can see where it crosses the other line plots in the same figure. Kind of like a vertical crosshairtool, which stays on the plot when i save it and doesn’t move with the cursor when i zoom out. I think it should work with a taptool, but I don’t know how to set that up. I tried google and reading the docs for weeks but I don’t get it. I thought that this is a common usercase but i was wrong I am thankfull for every piece of help I get.