If your data does not already have a grouping variable, you can create one using the Cluster platform. Using the Iris.jmp data, assume that the Species column does not exist. You know that the data comes from three species of Iris flowers, so you want to create three clusters within a group.
Using the Iris.jmp sample data table, select Analyze > Clustering > Hierarchical Cluster.
Select Sepal length, Sepal width, Petal length, and Petal width and click Y, Columns.
You can see that a Cluster column has been added to the Iris.jmp data table.
Example of a Scatterplot Matrix Using a Cluster Variable

Help created on 9/19/2017