-------------------------------------------
tickbox variable: $statmultampflag -- toggle multiply by stat
-------------------------------------------
default: 0 (FALSE)

When statmultampflag is TRUE (mul selected), the
amplitude of complex-valued data is *multiplied*
by the value of the stat field.  The stat field
is loaded with:

  setfile val <somefile>
  read_binary_values
  swap_stat_val

Note that this overwrites the val field, so stat
should be loaded before val.  Before loading, the
stat field will be 0.
