Customize navigational keys

[tsankuanglee]

In my menu, my first drop down has items like this:

&History
&Line-wrap

They clash with left (h) and right (l) navigational keys. When I press them, it moves to my last, or my second drop down, respectively.

Is it possible to provide an option to turn those hard-coded keys off (leaving just the basic unambiguous arrow keys), or better yet, let users define all of them. (In my case, I use a layered keyboard, so arrow keys, Home/End, PgUp/Dn, etc. are readily available under my fingers so I'd really like to free up hjkl keys for menu items, and maybe use Home/End to replace J/K.)

By the way, brilliant plugin! Thank you for making everyone's life so much easier!