Smart Grids/Boards?

Before making a feature request, I wanted to check whether there is something I’m missing. I’ve divided my space according to the five main different areas I manage at our institution. I have a lot of tasks related to each of these, so it would be ideal to have a task grid/board under each of them. However, I’d also like to be able to visualize all of these tasks at once, in a main task grid/board. I could use the “Type” attribute, or a tag, to identify each action item on the list as being part of that area. But what’s missing is a “smart grid/board” function that integrates the tasks from several other lists so I can view them all at once.

I realize that I could just only maintain one grid/board and use filters in that list to view only items with that specific type or tag, but that doesn’t allow me to break out the tasks into their own grids, under the different pages/areas.

Hopefully that’s not too confusing. Any thoughts?