There are currently three commands that can be used to find a file (that is, load it into a buffer and start editing it there). These commands work on the line that the cursor is situated at. They always ignore any marked files.
Find the file that the cursor points to (cvs-mode-find-file). If
the cursor points to a directory, run dired on that directory;
see (emacs)Emacs Manual.
Like f, but use another window
(cvs-mode-find-file-other-window).
Invoke ‘add-change-log-entry-other-window’ to edit a
ChangeLog file. The ChangeLog file will be found in the
directory of the file the cursor points to, or in a parent of that
directory (cvs-mode-add-change-log-entry-other-window).