Does anyone know if there is a way to create the same style of table box as in Columns Manager via JSL? The collapsible columns in the table box would be great to include in some reports, but I can't find how to do this in JSL.

The Tree Structure indicates a Col Span Box, but I cannot find any examples in the Scripting Index with a collapsible toggle. Is there another name for this type of table box?

If you try to Show Properties using right click within the table box, nothing happens, so I haven't been able to get any additional information.
Anyone know if this is even possible via JSL?