Variability Chart JSL groupby dynamically

[#1]

When i try to copy from the script, it is statically labelled as different "Wafer"? How to do Variability Chart JSL by using groupby "Wafer" dynamically? 

Variability Chart(
	Y( :Name( "NFC_RD_ICB_SB(Cnt)" ) ),
	X( :CYC ),
	Std Dev Chart( 0 ),
	Where( :Wafer == "UGG545-13" )
);

[#2 · Accepted solution]

Try getting the script with "Save By-Group Script":

Names Default To Here(1);
dt = Open("$SAMPLE_DATA/Variability Data/2 Factors Crossed.jmp");
var_chart = Variability Chart(
	Y(:Measurement), 
	X(:part#), 
	Std Dev Chart(0), 
	By(:Operator)
);