Maybe I'm mis-hearing you. We can't see your tax return.
"Yet it only summarizes all (13 pages in TurboTax) of these trades on the actual 8949--- into one line for short term gains, one line for long term gains. It really doesn't make sense to me."
If the two lines of summaries are on Schedule D, that's where they should be.
Always print a copy of your completed tax return for your records, and review it carefully before e-Filing.
You will need it if you are audited by the IRS, or to amend because a TurboTax update changes your return.
If the printout shows all the details on your Form 8949, then never mind, it's all OK and ready to file.
But if the forms 8949 (there would be two pages) show a one-line summary, then refer to my answer above.
