To add a message processing region to a resource group

In the dropdown list under Resources on the ESMAC menu, select By Group.
Click Groups, then click Details next to the resource group you want to update.
Click JES.
Specify IMS MPR in the Type field, the relevant classes in the Classes field, and an appropriate text in the Name and Description fields.
Click Add.
Click Group List.

Note:

Defining a message processing reigon for an enterprise server in this way causes a message processing region to start each time the enterprise server is started. For information on creating a message processing region that only exists until an enterprise server stops, see the section Temporary MPRs in the chapter Administering IMS-enabled Enterprise Servers in your Mainframe Subsystem Support Configuration and Administration Guide.