You specify a dynamic area in the )BODY section by coding the DA and ATTR tags. The DA tag is used to define the dynamic area in the panel )BODY section. The ATTR tag is used to specify the )ATTR section entries for DATAIN, DATAOUT, and CHAR attribute types used within the dynamic area. A dynamic area allows you to specify an area of the panel to format with your application. See the z/OS ISPF Dialog Developer's Guide and Reference for more information.