[tmate] feature: Ability to reassing key-definitions

(subject says it all, the below is just my rationale)

I use a funky split keyboard, and my space key is pressed with the right
thumb. When I'm reviewing checkins, I use the mouse with my right hand
to navigate and select. But when I decide to mark the transaction as
read I need to either popup the menu or take my right hand off the mouse
and to press space. If I could redefine the keys I would assign the
mark-as-read to the backspace or delete (pressed with the left thumb on
my keyboard).


--
Barry Kaplan
bkaplan@integratedtrading.com