You can specify the following statements with the OPTEX procedure. Items within the brackets 
are optional.
PROC OPTEX
<options> ;
CLASS
class-variables ;
MODEL
effects </ options> ;
BLOCKS
block-specification <options> ;
EXAMINE
<options> ;
GENERATE
<options> ;
ID
variables ;
OUTPUT
OUT= SAS-data-set <options> ;
To generate a design, you have to use the PROC OPTEX and MODEL statements. You can use the other statements as needed. As the OPTEX procedure is interactive, you can use all statements (except the PROC OPTEX statement) after the first RUN statement.