You can get what you want by using the Customize capability in JMP.
If you generate a histogram using Graph Builder, specifying not to draw the Fences, one can then use the Customize to add back in the Fences you want.
![txnelson_0-1633386599042.png txnelson_0-1633386599042.png](https://community.jmp.com/t5/image/serverpage/image-id/36296i9E9A961FF67255A5/image-size/medium?v=v2&px=400)
Right click on the graph and select Customize. Then click on the + to add a script, and copy in the simple script commands into the Customize window, and press Apply. It will add in the 2 fences you want.
![txnelson_1-1633386939623.png txnelson_1-1633386939623.png](https://community.jmp.com/t5/image/serverpage/image-id/36297iC494B874DF8E73BE/image-dimensions/800x282?v=v2)
Jim