DOCUMENT documentary_text.
DOCUMENT adds one or more lines of descriptive commentary to the
active dataset. Documents added in this way are saved to system files.
They can be viewed using SYSFILE INFO or DISPLAY
DOCUMENTS. They can be removed from the active dataset with DROP
DOCUMENTS.
Specify the documentary text following the DOCUMENT keyword.
It is interpreted literally—any quotes or other punctuation marks
are included in the file.
You can extend the documentary text over as many lines as necessary,
including blank lines to separate paragraphs.
Lines are truncated at 80 bytes. Don’t forget to terminate
the command with a dot at the end of a line. See ADD DOCUMENT.