Vertical infinite rectangle hoveron


I have been using add_vrect to overlay rectangles than go to infinity on the y axis. This is very nice in my case as it also keeps the annotation always where I want it. However, those rectangles contain a lot of information I’d like to display when hovering on it. I have read that it doesn’t support hovering, but will it at some point, and if not/meanwhile, does anyone have a workaround?
I have used shapes but it doesn’t really scale well as the y should really be infinite and independent of the zooming level.