There is this question on the community from a JMP user:
https://community.jmp.com/t5/Discussions/Bar-Graph-with-brackets/m-p/750755#M93202
Graph pad prism is a VERY STRONG competitor in the pharm and biologics space. The feature the user is asking for is super easy to do in Graph pad. JMP can't do this without really elaborate scripting. Simple features in graph pad make JMP look too complicated to even try to use.

https://www.graphpad.com/features