This feature is available in all editions
I have a large number of backlog items that I need to delete. How can I delete them without having to do one at a time?
Select all the checkboxes next to the items you want to delete
Choose Delete from the action drop-down action menu in the left corner of the grid
Speeding up the Deletion Process
You can try any combination of these tips to make the bulk deletion process go faster
Tip 1: Select all items on the page
Click the Select All check box at the top of the column to select all the items on the page, and then choose Delete from the action menu. Note that this option allows you to select only the items currently displayed. To delete more items, see Tip 2 below.
Tip 2: Show more rows per page
You can customize the grid to show more rows per page. See Changing the Number of Rows Displayed on a Page to learn how to do it. Note that your page load times may increase, but you will be able to select more rows at once.
Tip 3: Sort and filter the grid
You can also sort or filter the grid to change the range of what's being deleted.