To use the Seat Configurator:
1) Pick your aircraft and enter your source hub
2) Add your routes one by one with audit pax/cargo + audit price
2A) you can either manually enter the demand/price
2B) or copy/paste the audit text from Airlines-Manager and use the parse(extract) function
Then click 'Add to Circuit'
3) Once all your routes have been added to the circuit, click Calculate