To assist with finding older threads in a section, an index of all the threads in the section can be generated and displayed. This is done using the “Forum index” link near the top of the page while viewing the list of threads in the section.
The index lists all threads, initially in reverse date order, with the following information for each thread:
The list of threads can be sorted by different properties, using the buttons at the top of each column (except the message text column). Each click of the button alternates the sort order between ascending and descending.
The list can also be filtered using fairly flexible filter expressions. These are detailed in the filter help document.