Welcome to the JMP Community
The task you have specified is a very easy thing to do in JMP.
First read the data into JMP
![txnelson_0-1709476625541.png txnelson_0-1709476625541.png](https://community.jmp.com/t5/image/serverpage/image-id/61759i297E1BAE7CF121A4/image-size/medium?v=v2&px=400)
Add the Spec Limits to the Column Properties for the data column by right clicking on the header for the column and selecting Column Properties=>Spec Limits
![txnelson_1-1709476775765.png txnelson_1-1709476775765.png](https://community.jmp.com/t5/image/serverpage/image-id/61760iC21B8504FE816411/image-size/medium?v=v2&px=400)
In the dialog box that opens, enter in the limits. Make sure you check the "Show as Graph Reference Lints"
![txnelson_2-1709476895436.png txnelson_2-1709476895436.png](https://community.jmp.com/t5/image/serverpage/image-id/61761iCBDCA1E0D018ED8F/image-size/medium?v=v2&px=400)
Click OK and go back to the data table
Go to the Graph pull down menu and select Graph Builder
![txnelson_3-1709476991749.png txnelson_3-1709476991749.png](https://community.jmp.com/t5/image/serverpage/image-id/61762i1CAE20AFA3A4F186/image-size/medium?v=v2&px=400)
In the Graph Builder window drag the data column to the X drop area
![txnelson_4-1709477136556.png txnelson_4-1709477136556.png](https://community.jmp.com/t5/image/serverpage/image-id/61764i277445408278DFA6/image-size/medium?v=v2&px=400)
Now Click on the Histogram Icon at the top of the graph
![txnelson_6-1709477316995.png txnelson_6-1709477316995.png](https://community.jmp.com/t5/image/serverpage/image-id/61766i1431594BAD3FFDE9/image-size/medium?v=v2&px=400)
The graph will now show the histogram with the specified limits
![txnelson_7-1709477350248.png txnelson_7-1709477350248.png](https://community.jmp.com/t5/image/serverpage/image-id/61767i5B4BA5A811B591B4/image-size/medium?v=v2&px=400)
Jim