add action by action on the existing mapping context
SELECT Override Settings
SELECT Player Mappable Key Settings
"Name" & "Display Name"
here you add your 2nd k-board key
use new 'Name': e.g: YourAction2
same 'Display Name'
here you add gamepad/controller key
for controller
use new 'Name': e.g: YourAction3
same 'Display Name'
short explanation:
add 3 keys for an action [2 k-board; 1 controller]
all must have the same "display name"
the "name" must differ, it is used to separate them from each other
the key for the controller must have "display category" = "Controller"