To see a major context view, click the large task selector button in the middle of Trog Bar, hover over Categories until the list pops out, notice the major contexts at the top (in parentheses), then click the major context you need. A list of recent Categories also appears at the bottom, before the category list pops out.
You can also click any hyperlinked category when looking at it in Trog Bar.
Outlook’s task list shows you all tasks for all categories, grouped by category, including major contexts. Right click any category group header and select Collapse All to see all the headers. Click + next to any major context header to expand it and see its tasks.