There's not much to say here. If you've read the last two posts on Grids, you already know everything you need to know.
And finally... A Grid can also be a content element in another Grid. If you want to know what you can do with an embedded Grid, review the first two posts on Grids. The rules are still the same.
Today's video covers creating grids within grids. In this example, I've produced a simple web page with a mixed layout. The first row of the page has 3 columns where two of the columns span two rows. The second row contains one cell that appears to span three columns.
That covers the Grid. Upcoming topics include:
Let me know if these or other topics are of interest and I'll do my best to answer your website management questions.