What inspired this wish list request? At one time there was a nice add-in, Correlate Y by X Add-in that computed both the standard Pearsons correlation along with Non-Parametric fits. It was very easy to engage and worked well. However, that add-in has not worked on the newer versions of JMP. It is very common to use the non-parametric rank and the Spearmans rho for many applications.
What is the improvement you would like to see?
Simply find a way to enable that add-in to work in JMP19
Why is this idea important?
Currently, the only way to access a non-parametric correlation to obtain a Spearmans rho value is the multivariate test platform. That can work well if the number of variables is low. But in many cases, the desire is to have a one by many correlation calculated. And when the many are several hundred, the multivariate platform is simply inapproriate for that purpose.