The Apama Developer perspective uses the standard Eclipse Project Explorer view. The Project Explorer lists the Apama projects you have defined. You can expand and collapse each project to view or hide its contents. You can add any kind of file to an Apama project. For most files, double-clicking the file opens it in the appropriate editor. The Project Explorer view is where you build and launch your projects. For descriptions of the icons in the Project Explorer view, see Managing project hierarchies.