Trying to amend our taxes from "MFJ" to "MFS", I am the primary filer. Does my wife need to file an amendment or just file a regular "MFS" return?

I am the primary filer in TurboTax online. I know how to amend my tax to MFS. Does my wide need to file an amendment or just efile a regular "MFS" return? In any case, I understand that she will need to have her own TurboTax account. If she needs an amendment, how do you start the process with TurboTax Online?