Hi all, I’m trying to enable amortization schedules in my Netsuite instance by following these instructions. However, I don’t see an option for Amortization Schedule on this page as the instructions imply I would. Does anyone know how I can find this? Or is this a feature I have to purchase separately?

I believe it's part of the Advanced Financials module

Luis is right, otherwise you would see this parameter at the end of page (Ignore that it says Revenue):

I see, thank you!