As I recall Norganna explaining it, the intent is for the items in the scrollbar to the left to have checkboxes that allow them to be included in a batch post. Once they are checked, you can click on the batch post and it will queue all your postings at once, using the settings for each that exist in Appraiser.
I'm personally looking forward to this feature a great deal, though I find myself able to queue things up pretty well on my own too.