I wanted to collect related Grids under one common Tab. It is easier to navigate and reduces the number of open Tabs. I used the Dashboard to accomplish this. The "Main-Grid" is just a place holder for all the Sub-Grids (#1- #3 in this case):

1) I put a hyperlink to the home page as shown, to more easily edit it. I find the "..."'s a bit tricky to use, even when I remember what they are

2) I combine grid groups with the home page.

In my example, I have bookmarks and the other five grids shown marked as "homepage" in Manage Grids>Options>Groups.

Click on the homepage "homepage" link to toggle showing links to the grids; this is extremely handy to keep a list of current grids I use frequently if not daily. The "IQ:" shown is also setup to show all the IQ-related grids I have.