Simply way to collapse/expand over aggregators as in WinUI?

Hello,

There is no built in functionality, but there are ways around this:

1. The set you are displaying in the table could contain a “Total” value that is calculated for this purpose. If you do not want to visualize it anymore, remove from the set.
2. You could use the tabbed page or widget named views, to have a visualization with or without the total and with different levels of aggregation, allowing users to switch between these levels of aggregation without having to switch screens.

Those are the ideas that come to mind.