[whpalmer4]

If you don't have your heart set on grouping by context, try grouping by due date in that view, and perhaps sorting by either due or context. You'll get a group for stuff due today, and a group for stuff due tomorrow, and so on. You can close all but the due today group and save the perspective. I do all my start/due-based viewing in such a view, because it allows me the most control over which events are included (without messing up my styling choices for "due soon" items), and it doesn't much matter to me which context something is in when I'm looking to see what is due today.