Re:   File naming/defaulting on Twenex
How to come up with a value for Teco's fs:ETMode$, which affects how
the :ET command works.
    
    DEV  DIR  FILE  EXT  VERS   Value (OCTAL)
     1    1    1     1    1       37
     1    1    1     1    0       36
     1    1    1     0    0       34
     1    1    0     0    0       30
     0    0    0     0    0        0
where a 1 in that column means default that field.