It's my understanding that IRS will accept a 1040 with only a Schedule D, and not the 8949 detail. I realize that TT encourages you to directly download your trades from your Broker. However I prepare a return for a family member who does a LOT of short-term trades. (His return last year had an 8949 that was 50 pages long!) Just wanted to check to see if I have to provide an 8949.
