Edit and delete are self-explanatory. Delete by date can be useful for a very temporal orientated board, e.g. this months tutorial questions.
Reset sequence is a database cleanup option for renumbering messages consecutively.
Edit Properties jumps to another screen that allows the alteration of the boards original set up features. Deactivate keeps the board but hides it. Drop this Forum deletes the board and all its information. Individual moderation of boards with pre-posting moderation if desired. Each board's web page can be individually tailored.