View Summary Data at the Bottom of the Page for Grids in Additional Insights

Summary data at the bottom of the page is a nice way to quickly see how numbers in selected cells add up. However, this functionality doesn't work for the grids that are created in the Additional Insight section on worksheets.

I would like the summary of selected cells to be working not only for the primary grid, but also for the grids in the Additional Insights section. Like on the picture below: