Hi,

This isn't something I've personally tried before, but I took a quick look at the OOTB Interaction portal's dashboard (I chose a CS portal based on your post's tags) and used live UI to review the sections that drive the portal.  It looks like the layouts and sections under the CSRDashboardTemplateAlt section (this might be different depending on which portal you're using, and you can use Live UI to find the appropriate section for your portal) could potentially be customized to achieve something like this, possibly by using collapsible headers on the contained layouts.

Hope this helps!

-Kurt

Thanks. I will try this.