Close Invisible Tabulate Window

[#1]

I am using Tabulate to summarize some data in a script and then saving the result to a table. I use the "invisible" property (command or whatever it is) so I don't see the intermediate Tabulate window.

However, I end up with a bunch of invisible Tabulate windows that accumulate as I run through the script. See image below...

I tried dtab << Close but it doesn't work.

Can someone tell me how to close an invisible Tabulate window?

Thanks much as always for help as I am gradually learning the ins and outs of JSL.

[#2]

Try

dtab << Close Window;

Example

Names Default To Here(1);
dt = Open("$SAMPLE_DATA/Car Poll.jmp");
obj = dt << Tabulate(
	Add Table(
		Column Table(Grouping Columns(:sex, :marital status)),
		Row Table(Grouping Columns(:country, :size))
	)
);

wait(1);
obj << close window;