Controller Customisation for Enhanced Gameplay (LB RB)

My main feedback is a request for the development team EA to provide more flexibility in the custom controller settings.
 
Desired Controller Mapping
 
I would like the option to map Grenade to LB and Melee to RB.
 
Currently, the custom button mapping settings do not allow this specific combination.
 
Rationale for Change
 
Many players, myself included, do not need the Ping function on a single press LB.
 
The double tap or hold is perfectly fine and would free up the LB for a more critical combat action like grenades.
 
RB Melee would be perfect for close combat.
 
B button is difficult for many of us and toggle has a proximity conflict.
 

Thank you for considering this feedback