You can also do this interactively.
Select all your columns, right click, standardize attributes
![jthi_0-1718860168534.png jthi_0-1718860168534.png](https://community.jmp.com/t5/image/serverpage/image-id/65429iDD4BBB1F75FCE1FA/image-size/medium?v=v2&px=400)
From Attributes select lock
![jthi_1-1718860187913.png jthi_1-1718860187913.png](https://community.jmp.com/t5/image/serverpage/image-id/65430iE6E356C3F5E233EE/image-size/medium?v=v2&px=400)
![jthi_2-1718860201952.png jthi_2-1718860201952.png](https://community.jmp.com/t5/image/serverpage/image-id/65431i887D75378C14093C/image-size/medium?v=v2&px=400)
Enable Lock, press Apply, verify from column list columns are locked and press OK
![jthi_3-1718860227869.png jthi_3-1718860227869.png](https://community.jmp.com/t5/image/serverpage/image-id/65432iB903E8ABE53C877F/image-size/medium?v=v2&px=400)
JMP will also create a script to do this but it isn't as robust as the script provided by Jim (JMP created one has pre-determined columns in a list)
Local({old dt = Current Data Table()},
Current Data Table(Data Table("Big Class"));
For Each({col, index}, {:name, :age, :sex, :height, :weight}, col << Lock(1));
Current Data Table(old dt);
);
-Jarmo