I ran your JSL without issue using JMP 18.1 on Windows 11.
![txnelson_0-1722314454829.png txnelson_0-1722314454829.png](/t5/image/serverpage/image-id/66592i3D80919B62CCD1F6/image-size/medium?v=v2&px=400)
Names Default To Here( 1 );
dt =
// Open Data Table: Big Class.jmp
// → Data Table( "Big Class" )
Open( "$SAMPLE_DATA/Big Class.jmp" );
LSL = 44;
target = 55;
USL = 66;
show_limit = 1;
Units = "LBS";
colList = dt << get column names(string,continuous);
i=1;
Eval(
Eval Expr(
dt:(collist[i]) << Set Property(
"Spec Limits",
{LSL( Expr( LSL ) ), USL( Expr( USL ) ), Target( Expr( TARGET ) ), Show Limits( Expr( Show_Limit ) )}
) << Set Property( "Units", Expr( UNITS ) )
)
);
Are there any messages in the JMP Log?
Jim