[Brian]

If I'm understanding the request correctly, these steps should give you a perspective like you're after.

Set the contexts window up the way you want everything to look. Filters, etc.
In the sidebar, select all the contexts, then Command-Click the context(s) you want to omit. This removes them from the selection, and thus removes their contexts from the outline pane.

Next, select
Perspectives -> Save New Window As -> New Perspective
from the menu bar.

Hope that helps!