How can I download the entire set of forms from my returns? I'm not able to download the full set of forms for my returns. I only get the basic 1040 and state forms.

Have you already efiled, and if so, has it been accepted?  I can tell you an alternate way to get various PDFs.

Yes I have efiled and both returns show to have been accepted.

That's the answer I needed.  Would not have thought to try "Add a State".

No, it's not intuitive at all.  Good luck.

Try this and see if it produces what you want:

Here's how to open your return back up to print/view/download the most current PDFs at the Print Center, including the returns and optional worksheets.

NOTE:  When you open your return back up, do not make any changes in it since it's already been filed.

• Log in and go to "Your Tax Returns & Documents."  Click that line or on the word SHOW to expand that section.
• Choose 2017 tax year.
• Click on "Add a State."  (you don't really add one.  That's just to open your return back up.)
  
• After the return is open and past the blue-green screen, click in the left menu column on TAX TOOLS, then PRINT CENTER.
• Then choose "Print, save, view this year's return."
• The next screen should offer 3 options:  "Just my tax returns", or "include government worksheets (optional)", or "include government and TurboTax worksheets (optional.)"
• See if those PDFs have what you need.
  

NOTE:  Do NOT use this method to open a return to make changes/edits to an already-filed return (one that has actually been mailed or efiled.)   If you later need to make changes to an already-filed return, you have to go through the formal amending process, and your return must start off exactly as originally filed.