Hi Joel,
Interesting question. I could not do it in WB12 or WB14 but I could do it in WinDev14 because one of the new features is container columns in tables. As I understand it, loopers and tables are variations of the same control. But WebDev controls don't have all the functions of WinDev controls. I had a lot of problems getting loopers to work correctly with AWP pages.
However, in WebDev 12 you can add a tree control to a looper. Maybe you can show the data you want that way.
Any other comments by looper specialists?
Cheers,
Jeff