Drake allows efiling an amended return when the original was prepared elsewhere, but TurboTax doesn't?

https://kb.drakesoftware.com/kb/Drake-Tax/16841.htm#Amending2

Drake allows efiling an amended return when the original was prepared elsewhere, but TurboTax doesn't? If the original was prepared elsewhere then the amended return has to be mailed? Is there a different TurboTax option that allows that?