managed to get the pedals set to AimTrack buttons, not having any joy changing the Next/PrevWeapon. Only works with mouseScroll
Fixed by commenting out conflicting controls. I am using UP/Down arrows now.
This worked in defaultinput.ini
; USB FOOT SWITCHキーバインド
.Bindings=(Name="MiddleMouseButton",Command="StartPedalL | OnRelease StopPedalL")
.Bindings=(Name="RightMouseButton",Command="StartPedalR | OnRelease StopPedalR")