Thread Comments Tab
When you have installed thread comments, a new tab is automatically displayed within the issue screen.
The threaded comments toolbar shows a button to display all threaded comments within an issue. You can also sort issues ascending or descending.
Creating a new thread
To create a new thread, you just have to reply to a mainthread.
Display all threads of the issue
If the right panel, you can also filter comments for a specific thread
Filter comments for a specific thread
By clicking on the specific thread, you can display all its comments. In the middle panel, you can then reply on the thread. Comments are sorted with the last comment on the top.