Group 1

Group 2

Details

 

I want the report to initally open showing Group 1.  Then, if the reader double clicks on Group 1, they will see Group 2.  And, finally if the reader double clicks on Group 2, they will see the Details section.  I've tried all the configurations of Hide and Suppress that I can think of.  I'm guessing I need some sort of formula for this, but I am unsure what that formula would be.