Does your table have any specification limits set? Using Big Class as an example.
After opening and immediately trying to create Process Capability (no option available):
![jthi_0-1637481598829.png jthi_0-1637481598829.png](https://community.jmp.com/t5/image/serverpage/image-id/37730i1BD5E09925554CDE/image-size/medium?v=v2&px=400)
After adding specification limit column property to height column:
![jthi_1-1637481659225.png jthi_1-1637481659225.png](https://community.jmp.com/t5/image/serverpage/image-id/37731i23DF116A1C11C314/image-size/medium?v=v2&px=400)
Edit:
You can also do Capability Analysis from the distribution platform if you don't have the limits yet, good example Process Capability Analysis , see also this
-Jarmo