To view the full details of an issue, click its issue link (key or summary).

open issue details

This will open a pop-up version of the Jira issue page, where you can edit the issue, view and add comments, share, view history, and more. For specific information on working with and editing issues, please refer to the Jira documentation.

Issue details popup window

You can also quickly edit many issue fields directly from the structure. See Editing Issues from Within Structure.