specifies the mode in which you want to access SYSTEM 2000, M for Multi-User mode or S for single-user mode. Use M to access Multi-User SYSTEM 2000 running under a different CMS computer or z/OS address space. Use S to load and execute your own copy of SYSTEM 2000 on your computer or address space. The default is M.
retains all blanks in SYSTEM 2000 statements and passes them to SYSTEM 2000 software. You can specify the BLANKS option in order to retain blanks in LIST column headings, TEXT values, and report titles and headings. If you do not specify the BLANKS option, SAS deletes extraneous blanks by default. That is, leading, trailing, and embedded blanks are stripped from the statements before SYSTEM 2000 reads the statements. BLANK is an alias for BLANKS.