Edit — Edit the issue's details (Summary, Description, etc). Assign （割り当て） — 課題に対する担当者を選択します。 Assign To Me （自分に割り当て） — 課題を自分自身に割り当てます。 Comment — Add a comment to the issue. Log Work — Record the work done and time spent on the issue. This option is only available if Time Tracking has been activated on your JIRA site. Attach Files — Select a file, upload it and attach it to the issue. Attach Screenshot — Select a file, upload it and attach it to the issue. Voters — Opens the Voters list of the issue, where you can manage your vote and see others who have voted on the issue too. Add Vote — Adds your vote to the issue. (This option is only available if you did not create the issue.) Watch Issue — Become a watcher of the issue. Stop Watching — Stop watching the issue. (This option is only available on issues you are currently watching.) Watchers — Opens the Watchers List, where you can manage watchers of the issue. Create Sub-Task — Create a new issue which is a sub-task of the issue. Convert to Issue — If the issue is a sub-task, convert it to a standalone issue. Convert to Sub-Task — If the issue is a standalone issue, convert it to a sub-task. Move — Move the issue to a different project. Link — Create a link between the issue and another issue. This option is only available if Issue Linking has been enabled on your JIRA site. Clone — Create a new issue which is an identical copy of the issue. Labels — Edit the issue's labels. Delete （削除） — 課題を完全に削除します。