Yes, I have a lot more hardware such the HC Bravo throttle and also the WinWing Airbus Sidestick and they have a lot of buttons that I could not program using SimAppPro and when this software was running it was conflicting with SPAD.NEXT particularly with the WinWing Airbus Throttle. So thats why I went this way. Anyway I don't know why I couldn't see the (INI_FPA_DIAL) LVAR cause all of a sudden in was there and it is an internal lvar of the A320 neo so I was able to complete the FCU in SPAD.NEXT
You raise a good point though, if I could have manually specified what Winwing products I wanted SimAppPro to drive ie Only the FCU and not the throttle I would have been good to go.