Well, there was a list for Omnifocus 1, and I asked The Omni Group support in July 2014 to add the one-key shortcuts to the Keyboard Commands page available in the Help menu. In January this year I wrote again to support, as I by mistake had found the dangerous space command, which wasn’t even documented in the Omnifocus 1 list. These are the one-key shortcuts that I am aware of:
D - Move down
U - Move up
R - Move right
L - Move left
E - Edit
Space - Change status to completed (very dangerous and should in my opinion require a command key - a whole set of projects once disappeared while I by mistake tried to write something including a space when I had those projects selected, and I didn’t realize what had happened until later, when I missed those projects)
I even wish there were two more commands of this kind available: T - move to top, B - move to bottom.
The commands really should be documented, though, as they don’t require any modifying key, and thereby are very easy to use by mistake if you’re not aware of them.
Most of these single key shortcuts could also be used in Omnioutliner.
