It is impossible to navigate the menu if you have several games and you like the actions on the same keyboard/mouse buttons. The games assign the actions like jump/crouch/melee differently so you will not know where ABXY is at the moment.
The idea would be to set a global key that works in any game. You would assign the buttons to keys only. Not the translator and not the sens, nothing more.
When you toggle/hold that button everything for the current game would be left unchanged just the Menu keys would get activated. It would fit great under globals in the main menu.
Example: you play BF4.
LMB is fire
RMB is ADS
scroll up grenade
scroll down is spot
forward is change weapon
backward is reload
when you press your global menu button the mouse changes to
LMB A
RMB B
scroll up Y
scroll down X
back shoulder right
forward shoulder left
This way you would have an easy mouse navigation. A and B on LMB and RMB are very natural.
you can do this to the dpad also if you would like to shift them to WASD for example.
You can do this with every single config already but its quite inconvenient. Mist had the idea to copy paste the menu config but I still think its more elegant this way.