if you are an active investor you should be aware that Box A and Box D transactions with no adjustments do not have to be itemized on Form 8949. Thus there is no reason to import those transactions.
instead report subtotals on schedule d Line 1a for A and Line 8a for D
If you have wash sales, it gets more complicated since those have to be itemized on Form 8949 and the summary totals adjusted accordingly.
