Lets you select files according to their filename. For example, you could use *.txt to select all txt files. Note that you can't use more than one filter at a time.
Selects all the files in the archive
Unselects all the files in the archive
Reverses which files are selected. Selected files become unselected, and unselected files are selected.
Displays the "Shell Output" box, which shows you the output of the most recent command(s) run by ark. This is sometimes useful if you are having problems and want to troubleshoot.