Task Browser
The issue browser is a utility that allows you to quickly and easily manage multiple tasks at the same time.
Using this utility, you can Control+Click multiple tasks and highlight them.
Exclude Selected Tasks from JIRA
This option will exclude all of the selected tasks from JIRA so that during the syncing processing, these tasks will be ignored.
Unattach Selected Tasks From JIRA
This view will also allow you to filter by different options using the drop-down box in the upper right corner of the dialog. This will allow you to see which of your project tasks are unassigned, ignored, etc.
Double clicking on a task will take you directly to the "Issue Info" dialog where you can make changes if needed.