Josh's method relies on creating a simple calculation referencing the parameter and adding that to the view.
However that doesn't mean we can't still hack this in a similar way, we just need to expand on what Josh found. This is because of some underlying required for Set and Parameter Actions in 2019.1. Sadly due to some changes in the way Tableau works under the hood the way a mark is defined in Tableau is no longer a simple as Josh explains in his excellent post. My inspiration came from Josh Milligan and his posts on Dynamic Annotations : I have carefully placed these to guide the user as they click through the tutorial.
Now the viz wouldn't be complete without some dynamic annotations to show the user what is updating in the Viz and help them find the settings.
