Is this still the method to write superscripts in graph label?

[#1]

Found this in an old posting and it seems like a lot of work to get a superscript, just wondering if JMP has added any functionality here since 2015.

[#2]

I'm struggling to get the above to work so I tried this:

But I can't get that to work either: 

What am I doing wrong?

[#3 · Accepted solution]

OK This worked....Thank you to whoever wrote this usage note. Please let me know if anyone knows of an easier way to add superscripts to graph labels.