It looks like the original request was to use jsl to load a limits table into the Manage Spec Limits platform and then save to column properties.  Below is JSL that will do that.
dtLimits=New Table( "Limits",
	Add Rows( 4 ),
	New Column( "Variable",
		Character,
		"Nominal",
		Set Values( {"OZONE", "CO", "SO2", "NO"} )
	),
	New Column( "_LSL",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [0.075, 5, 0.01, 0.01] )
	),
	New Column( "_USL",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [0.25, 12, 0.09, 0.04] )
	),
	New Column( "_Target",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [0.15, 7, 0.04, 0.025] )
	),
	New Column( "Show Limits",
		Numeric,
		"Nominal",
		Format( "Best", 12 ),
		Set Values( [1, 1, 1, 1] )
	),
	New Column( "Importance", Numeric, "Nominal", Format( "Best", 12), Set Values([2,4,1,3])),
	New Column( "Units",
		Character,
		"Nominal",
		Set Values( {"lbs", "mi", "in", "ft"} )
	),
	New Column( "Centerline",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [0.15, 7, 0.05, 0.025] )
	),
	New Column( "Sigma",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [.05, 4, 0.03, 0.01] )
	),
	New Column( "Measurement Sigma",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [1, 5, .5, .8] )
	),
	New Column( "Lower Tolerance",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [0.075, 5, 0.01, 0.02] )
	),
	New Column( "Upper Tolerance",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [0.25, 12, 0.1, 0.05] )
	),
	New Column( "Reference",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [0.15, 7, 0.04, 0.025] )
	),
	New Column( "Resolution",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [0.05, 1, 0.08, 0.9] )
	),
	New Column( "Historical Mean",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [0.15, 7, 0.04, 0.025] )
	),
	New Column( "Historical Process Sigma",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [1, 2, 3, 4] )
	)	
);
dt = Open( "$SAMPLE_DATA/Cities.jmp" );
obj=dt<<Manage Spec Limits( Y( :OZONE, :CO, :SO2, :NO ), Load from Limits Table(dtLimits) );
obj << Save to Column Properties;