One of the many requested features is bulk issue editing. In 0.8 this is now possible through the new issue list page shown below. After selecting the issues you would like to edit with the checkbox next to the issue you can select the edit properties button. You will then be shown a panel of the issue properties that you can set. Set the properties you wish to change and select save and your issues will be updated!
The second addition to the issue list is the ability to select individual columns to display in the issue list. This is ...