Cannot file extension electronically via desktop app. Can I do it online, then file taxes on the desktop app later?

I am disappointed in Turbotax now having the feature to file an extension electronically via the desktop app. Especially since I already paid for it and feel it is the best value each year when I purchase through Costco. That said, it doesn't give me the ability to file an extension electronically. Is it possible for me to file my extension electronically via an online account, then officially file all my taxes via the desktop app after extension is granted? or would that lock me into using the online account version of turbotax? I think this is incredibly frustrating and should be a basic feature available to all users of the desktop app.