The @PAR INDEX statement or the @INDEX statement which is only available in F mode can be used to activate or deactivate the line number display in the work window. By default (@PAR INDEX=ON or @INDEX ON), the format with 72 characters per screen line (or 124 characters per screen line if @VDT F2 has been specified), 6-digit line number display and blank as separator are set.
@PAR INDEX=OFF or @INDEX OFF set 80 (or 132) characters per screen line without line number display. In both formats, the first column of each screen line forms the statement code column. If line numbers are displayed, this overlaps with the first column of the line number display. If line numbers are not displayed, this overlaps with the first column of the data window.