Ok, I see what you were asking. Yes, "Focus Editor" does work perfectly for getting you back into the Editor, so that is always there as the "escape" out of any of the other panels. In terms of setting the focus for other items, I think setting it to the tab of the panel is the best UI component. In doing a little testing, once the focus is on the tabs of the "Logs" panel, the user can move through the tabs by using the left/right arrow keys. Then, he/she can get into the contents of a particular panel (thus letting the screen reader read the contents) by pressing Tab.
Is that the info that you needed?
Thanks,
Tim