I think using Manage Limits is easiest option even without any scripting
and it is also fairly simple to script
Names Default To Here(1);
dt = Open("$SAMPLE_DATA/Semiconductor Capability.jmp");
obj = dt << Manage Limits(Process Variables(dt << Get Column Group("Processes")));
Wait(1);
obj << Show Limits All;
obj << Save to Column Properties;
//obj << Close Window;
-Jarmo