The Name contains script:
Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA/Big Class.jmp" );
New Window( "Filter Col Selector Example",
fontobj = lb = Filter Col Selector( width( 250 ) )
);
lb << Name contains( "a" );
delviers all colums, which contains a. What code must be added in order to mark one of these columns by clicking or double clikking the column from the list box?