For some inexplicable reason, the shortcut keys for that do a COMPLETELY DIFFERENT THING than the right click menu version. I think the shortcut key goes up/down by two, which makes it worthless to me since much of the time I'm not raising or lowering an even number of tones.
Hah yeah, I forgot to remove the shortcuts from the internal accelerator table, that made these commands to be triggered twice since those are also in the shortcut editor.