To compile an individual COBOL, IMS, JCL, or BMS file that is part of a native, or a managed Mainframe Subsystem Application project:
The information here only applies to native COBOL.
To compile a standalone COBOL file that is opened in the editor without a project:
When the file is opened, the editor shows an information task bar prompting you to find the program symbols (.idy) file and to check the Compiler directives that will be used to compile the file. See Setting Compiler Directives on Individual Files for help with setting the directives.
You can cancel the compile process by right-clicking in the editor and clicking Cancel Compile.
Compiling produces an .idy file that the IDE uses to provide some features in the editor such as colorization and navigation.
The recommended way to work with Enterprise Developer is to include all source files in a project because this enables full support for the IDE editing, compiling and debugging features. To enable this support for standalone files, Enterprise Developer provides a path for creating projects from them - right-click the file in the editor, and click Create COBOL Project.