Set the DIALECT"RM" directive in the project's properties so that it applies to all programs within the project unless you
explicitly override it at the program level.
Right-click your project in the COBOL Explorer view and select
Properties for <project-name> dialog box appears.
The COBOL settings appear in the right-hand pane.
Language Dialect to
Apply and Close.
The RM/COBOL dialect is applied to any program within the project, unless that program overrides it by setting the DIALECT
directive explicitly within the source code.