Hi Tom,
Can you please describe a little more what you mean by stack tables? Within Insights, there are two types of tables - the data table and the summary table. The data table is ALL the content, and the summary table is summary statistic information. The data table is only available to the Insights analyst, and is not shared to viewers accessing shared pages. In our next release (July-ish) we do plan to add z-level ordering to all Insight cards, so you can send them to back/front similar to PowerPoint.
