How can I add my Form W-2C to my tax amendment in TurboTax if I've already filed and been accepted? Do I directly edit my W-2 directly, or is there a place to upload?

I received a W-2C form from my employer because they had an error on my original W-2, but I don't see anywhere to upload this form in the TurboTax amend section. Should I just adjust the original value in my form without uploading the corrected form?