We have MPEX here, so I tend to do a %listf THATDB@,db which gives not only the
names of the sets in order of their filenames, but also other useful info.  I
would expect, though, that a FORM SETS in Query would give the sets in the same
order that a :LISTF THATDB@ does and thus a mapping could be quickly created.

HTH,
Ted
--
Ted Ashton ([log in to unmask]), Info Serv, Southern Adventist University
          ==========================================================
To arrive at the simplest truth, as Newton knew and practiced, requires
years of contemplation. Not activity. Not reasoning. Not calculating. Not
busy behaviour of any kind. Not reading. Not talking. Not making an effort.
Not thinking. Simply bearing in mind what it is one needs to know. And yet
those with the courage to tread this path to real discovery are not only
offered practically no guidance on how to do so, they are actively
discouraged and have to set abut it in secret, pretending meanwhile to be
diligently engaged in the frantic diversions and to conform with the
deadening personal opinions which are continually being thrust upon them.
                                         -- Brown, George Spencer (1923 - )