Thank you.  It helped.

I had been using Avery 4013 (fan-fold) labels, which defaulted to "number
down  = 12", and that gave me a section mark after every 12 labels.  I changd
to Avery 4010 (roll) labels, which defaulted to "number down = 1", resulting
in no section marks.

For the record, after that when I inserted a "Skip if..." field before the
first printable field, it shoved that field to the right.  Since I thought it
would print there, I inserted a carriage-return, which gave me seven lines
per label.  Removing the carriage return gave me my six-line label and the
first field printed where it was supposed to (i.e., although the layout on
the screen made it look as though the "Skip if..." phrase took up space, it
didn't take any.)