Go up to Top.

Go forward to Wall.

 WALDO [probably taken from the story "Waldo", by Heinlein,
       which is where the term was first used to mean a mechanical adjunct to
       a human limb] Used at Harvard, particularly by Tom Cheatham and
       students, instead of FOOBAR as a meta-syntactic variable and general
       nonsense word. See FOO, BAR, FOOBAR, QUUX.