You can use the "Grouped" option on the Col List Box.
Names Default To Here( 1 );
dt = Open( "$SAMPLE_DAA/semiconductor capability.jmp" );
New Window( "Col List Box Example",
Col List Box( all, width( 250 ), maxSelected( 1 ), grouped ),
fontobj = lb = Col List Box()
);
![grp1.PNG grp1.PNG](https://community.jmp.com/t5/image/serverpage/image-id/30087iF3F5FF6AF788B37D/image-size/large?v=v2&px=999)
It is documented in the Scripting Index
![grp2.PNG grp2.PNG](https://community.jmp.com/t5/image/serverpage/image-id/30088iECE418D3FCD9F4AD/image-size/large?v=v2&px=999)
Jim