(Beta3) Switching Active Panel via Keyboard on Media Page?

I've looked at the manual, did a 'net search and here... couldn't find anything...
I'm using the Media Page to mark clips.
If I select a clip in the Media Pool (list view) it shows in the Viewer, as expected. The "focus indicator" still shows the Media Pool as the active panel. The spacebar and JKL keys work, but if I pause playback the left and right arrow keys don't work to move the playhead. If I do use the left and right arrow keys, the highlighted column heading in the Media Pool moves.
Looking through the menus, I couldn't find anything that would make the Viewer the active panel. The Workspace menu "active panel" selections are grayed out. In fact, it seems that you have to click inside the Viewer to make it active. The same seems to go with the other panels on the Media Page.
Is this a bug, or am I missing something? It would be nice to be able to switch active panels on the Media Page with a menu selection or a keyboard shortcut.
I'm using the Media Page to mark clips.
If I select a clip in the Media Pool (list view) it shows in the Viewer, as expected. The "focus indicator" still shows the Media Pool as the active panel. The spacebar and JKL keys work, but if I pause playback the left and right arrow keys don't work to move the playhead. If I do use the left and right arrow keys, the highlighted column heading in the Media Pool moves.
Looking through the menus, I couldn't find anything that would make the Viewer the active panel. The Workspace menu "active panel" selections are grayed out. In fact, it seems that you have to click inside the Viewer to make it active. The same seems to go with the other panels on the Media Page.
Is this a bug, or am I missing something? It would be nice to be able to switch active panels on the Media Page with a menu selection or a keyboard shortcut.