How do you delete a "failed" invoice?

[twistedview]

I have a bunch of unpaid and a couple "failed" invoices in my invoice list that I'd like to delete, but see no clear way to do so. It seems like more than a few other people on this board have asked for this feature as well, which makes me suspect there are even more people who would want the ability to delete these orphaned invoices.

If there's a good reason for this feature not to exist, please, enlighten me. Or— better yet— if I'm mistaken, please correct me.

Otherwise, consider this a feature request.