You don't enter their W2 on your return. It would only go on their return if they are required to file one. If they only got a W2 for under $6,300 they don't have to file except to get back any withholding taken out. If it is for $6,300 or more or they got a 1099Misc they do have to file a return.
Be sure on their return they check the box that says they can be claimed on someone else's return. That is VERY important!
The Online version is only good for 1 return. But you can use the same email address for 5 accounts. To do another return you have to set up a new account and new user name and pay any fees again.
How to start another return in the Online version
https://ttlc.intuit.com/replies/3288574
