for those lines that say "see attached statement", where did you get info that was entered? If you imported, then it's probable that you may need to download from the brokers website the 1099-B. Contact the broker to see what they offer in the way of detail. if you used a offshore broker, it's likely there is no 1099-B in which case you now have a project of creating a form you create in the format of an 8949 or using the 8949 from the IRS website to create the detail for those lines.
https://www.irs.gov/pub/irs-pdf/f8949.pdf
i point out that Turbotax has a major flaw. Even security transactions of types A and D (proceeds and basis reported to IRS) with no adjustments are imported into the 8949 rather than directly into Schedule D lines
1a or 8a. these lines do not require that details be sent to the IRS. If only a few trades have adjustments and the rest are either type A or D, I would suggest not importing. Enter the info for types A and D that qualify in the proper section of the Turbotax Schedule D worksheet. then only the trades that don't qualify need to be detailed on the 8949.
