When you open a PL/I or COBOL program in an edit session for the first time after you connect to a system, copybooks and include files are downloaded. If you open the same program again in the editor, the copybooks and include files are not downloaded. You can download individual copybooks and include files in the editor by using the Refresh Cached Copy menu item. If you disconnect from the system and connect again, then the copybooks or include files are downloaded the first time that you open a COBOL or PL/I file in the editor after you reconnect.