Position the VFD cursor; that is, set the location at which subsequent text written to the VFD will be displayed.
vfd.setCursor(col, row);
vfd: a variable of the type Ncr4X20Vfd.
col: the column at which to position the cursor (with 0 being the first column)
row: the row at which to position the cursor (with 0 being the first row)
See UnitTests example.