how do i submit a 4506-t
You can download Form 4506T from the following link. The form is not included in TurboTax because it is not part of a tax return. It's a request to the IRS.
https://www.irs.gov/pub/irs-pdf/f4506t.pdf
4506-T must be filed by mail but if you register the tax return transcript is available online
https://www.irs.gov/individuals/get-transcript