The next addon is most likely going to be featured widgets – so the same kind of settings as the footer widgets, but below the header/navigation.
I just release pretty big updates to Blog and Page Header, but this addon is next.
As for the width – Pete is right, you can set it so it’s super wide in pixels, and it will adapt to smaller screens automatically and be 100% width.
You can also use CSS if you like:
body .grid-container {
max-width: 100%
}
Thanks!