Our company switched from JMP12 to JMP14 a few years ago and I noticed a regression in how data points are drawn with JMP14. We've recently switched to JMP16 and this same regression is still present. In JMP12 markers (whether selected or not) were draw in order (order according to the "Customize Graph" script list). For JMP14 and JMP16, selected data points are drawn above all other elements regardless of the order.
The request is simple -- markers (whether selected or not) should be drawn in order. This may seem rather pedantic, but when dealing with tens of thousands of data points it can be very convenient to draw mean lines or other such helpful information above the data points. When a very large number of data points are close enough to each other then selecting the points completely obscures the desired drawings that are _supposed_ to be draw above the data points.
In this example the green line has a black outline -- it is clear that the green selected data points obscure the black outline even though the point at which the markers are supposed to be drawn is before the script that draws the lines.
Here is the same graph drawn in JMP12: Notice how the lines are above the selected points.
