The run-time configuration settings for an application are available from within the project's properties in the IDE.Additional settings for configuring an application running under enterprise server are available for the Mainframe COBOL project
type - invoke the properties of a service interface that is part of the project, check
Enable Enterprise Server run-time environment and then click
Configure Enterprise Server Run-time Environment.
Restriction: The run-time configuration settings only apply to native COBOL applications.
Some run-time behavior can be configured only by using run-time tunables, which are stored in a configuration file.
When you run the application, the IDE creates a .gcf file which includes the run-time IDE settings.