There is an option to look at speed graphs under the first speed chart. You can enter in, up to, three different sprocket sizes and RPM if you like too. So you can compare the differences between each gearing choice.
You are right, it appears that using the info in my owner's manual/specifications I can fill in the data in Gearing Commander and produce such a graph. I was hoping for a "ready made" chart like I found for the FJR. Looks like its time to start plugging in data.