Long story short, there's many 'mechs I want to use Arm Lock on in a toggle, and it would be slightly more convenient if I could swap it on and off with one button, instead of needing to play keyboard twister (most notable when jumping in a Treb/3D while focusing my arm/torso weapons).
It would also make the "Default to on?" button largely unnecessary for new players, so they won't learn bad habits (but still start with arm lock.) Just begin people defaulted to on, and remember their setting (like a weapon group) in the next match, however it was at the end of the last match. Encouraging new pilots not to use their arms hurts them in the long run.
Anyway, this is about as simple as suggestions can get, so I've probably said too much.
Edited by Egomane, 12 April 2013 - 12:04 PM.
Removed multiple choice option