Show Hidden Files
Select the Show Hidden Files option to toggle if the normally
hidden files are displayed in the folder view.
By default, UNIX hosts do not display any files or directories that begin with
the dot (.) character, such as .rhosts or .profile.
Selecting the Show Hidden Files option corresponds to specifying the -a
switch of the ls command.
If the Show Hidden Files option is selected, a selection marker appears
next to the Show Hidden Files menu option.