Not here at auctiva.com, yet
But at classic.auctiva.com we have two methods
One is with ebud a management tool that relists and does feedback and emails along with many other things.
And there is web based relisting there which lets you change the price and duration of the listing being relisted.
so Auctiva does have tools for what you need but it's not here on the free listings tools site.
Thanks
Ed