Apparently Ctrl+F6 and Ctrl+Shift+F6 are default Windows keyboard shortcuts, although I was only aware of the Tab variants.

Because of this, these commands on not (apparently) configurable from within Mathematica. Further, Mathematica does not recognize the Tab commands.

Edit: I am working on a keyboard shortcut using SetSelectedNotebook now.

Apparently Ctrl+F6 and Ctrl+Shift+F6 are default Windows keyboard shortcuts, although I was only aware of the Tab variants.

Because of this, these commands on not (apparently) configurable from within Mathematica. Further, Mathematica does not recognize the Tab commands.

It may be possible to rig something using SetSelectedNotebook but so far I have failed to do this within the the confines of KeyEventTranslations.tr and MenuSetup.tr. Perhaps an EventHandler within a Palette could be made to work but I am tired of this problem.