Vim-like mode

[gustaphe]

I'd love an option to toggle a vim-mode:

key	action
u	undo
r	redo
i	enter [i]nner pencil mode
o	[o]uter pencil mode
a	norm[a]l fill mode
c	[c]olor mode
hjkl	left, down, up, right
v	enter visual select mode
w	to next box
/<num>	select all cells where <num> is a candidate

[grantm]

I do like this idea (I am a Vim user too) but it's going to be a while before I work through the higher priority issues.

I'm thinking the best approach will be to introduce a layer of indirection in mapping keystrokes to actions.