SPAD is absolutely fabulous and quite easy to use. Have a look at Les O’Reilly’s video collection on the SPAD discord (look for them under the CRJ700 Alpha/Bravo and just copy the online profile across to the 737…Everything including thrust reversers if you have the Bravo, work superbly. It’s actually very easy to map all the buttons and switches on the Alpha too.
for the 737, you need to be in BETA mode in SPAD and use the 737NGX mappings