The full description of the issue can be seen on this page. Users are able to comment on issues and change the issue's status (open/closed/in progress).

Mentioning

The comment field offers some extra functionality aside from entering text. By typing "@" the interface shows a list of user- and organisation names. Mentioning another user/organisation of Toucan will usually notify users and memebers of the respective organisation. These notifications can be configured separately.

Adding attachments

Toucan also allows users to attach files such as imges to posts. Select files by clicking the link next to the "Send" button.