I need to change the overall cost basis for the sale of a security which has three separate sell dates. I am confused about how to properly change the cost basis for the three entries. To make things simpler, what I would like to do is just make one entry which has the total shares, total cost basis and total proceeds. The issue I'm running into here is that Turbotax won't let me choose "various" for the sale dates, only for the acquisition dates. What should I do here? Can I just pick my earliest sell date and merge the three entries together as one under that date?
