The `para-menu' and `para-follow' commands not only take you to nodes in the current buffer, but also find other files. Files must be located in the current directory, or else their names must be spelled out completely.
Referenced files should be Texinfo mode or Para mode files; other kinds of file will be found, but Emacs will signal an error, that no node is found.
The `para-menu' and `para-follow' commands act on the other file as if it were a Para mode file.
In a menu, an entry for another file has to possess either of the two following formats:
* item:(filename). description. * item:(filename)nodename. description.
(The `description' is optional.)
The file name must either be to a file in the current directory or a full, absolute pathname. Para mode finds the file and attempts to visit it in Para mode.
In a cross reference, the format must follow the format used in Texinfo, with one difference: instead of providing the Info file name, provide the Texinfo file name, including the absolute path name, as in this example:
See section `Making Cross References' in The Texinfo Manual, for details.
As with the `para-menu' command, `para-follow' finds the file and attempts to visit it in Para mode.
Note: it would be desireable to enhance Para mode to select automatically the mode for a visited file according to the type of file; this would make it possible to make references to Info files.