Retirement tax questions

I reviewed the various responses.  They'll only work if you enter one sale at a time.  If you enter a summary for each category, the option to add more lines isn't there.  To get around this, I checked "I'll enter one sale at a time."  Then I entered the info as if I were using the summary of sales category option.  For date sold, I entered 12/31/YYYY; for date acquired, 'various.'  The end results were the same as if I had used the summary screen, except it included the amount of taxes withheld.