anyone does this or know :TurboTax 2023 - sharing an account to efile?

For 2023 TT software. It is pretty much known that only one user is allowed to use it on 5 PCs.  Assuming I have my cousin using my PCs to work and filing his returns.  When he does the efile,  will my payment info, email address popup and becomes the default  that he has to use?