One thing that doesn't work very well when automatically adding the Heritage auctions results is the attributions to versions. Attribution to year lines work, but not (always) when there are multiple versions in a year. Then it's just “undetermined”.
You have to delete the auction result and fill out the complete form again when you want to fix that currently. That's why I would like to be able to just edit them. It might also be useful when there's a mistake with the buyer's premium.