Hi,
Thanks again for the response. To your point of combining the maps and using them as the background, I'd have to have access to the raw data for the street map, which I suspect is large. And, I do not think there is a way to show a custom map as the background.
My understanding is that, if I want a custom boundary area outlined, I need to use a shapefile, which is a series of points that are connected by lines. The custom file, again, my understanding, is typically placed in JMP Maps folder and a field in your data file is linked to the custom name file. I have not seen a way to add the custom polygon as a background map. JMP seems to consider the custom shapes as something to render a summary statistic on so when I add my data points and attempt to display them within a shapefile boarder, they get summarized as one point that is the mean of the points. In summary, here's what I'm trying to do.
1. render lat.lon points on top of a street map. I can do this using the background maps you indicate.
2. *then* render on top of that (but no fill) the boundaries of the custom shapes. This would be a line outlining the custom area but you could still see the street map and still see the individual points.
It appears I can either see the points, or the shapefile boarder, but not both. That's the problem.
Following the links you provided, this example shows the problem https://www.jmp.com/support/help/en/18.1/index.shtml#page/jmp/example-of-a-boundary-map-with-clipped...
The points are shown at first, but as soon as you add the custom shapefile / boundary map, it wants to shade the areas as they relate to the underlying point data.