I use a Logitech G15 (the one with the extra keys on the side). I made one, that only my alts move back and one only my alts move forward. It breaks movement (if alts decide to run off into the sunset) and breaks follow.

I use my arrow keys to move everyone (main and alts) in case I need to move everyone.

You can pick any movement key you like. Mabye you make your alts turn, strafe, etc. Anything besides jump. Just use your key broadcasting or keymapping to do the actions you want to break follow.

And like others have said, try to not use timing with boxing in the same paragraph. It doesn't look good.