A project is of the type folder and contains objects like mappings and messages or global procedures. Double-click the project that you want to view. Alternatively, select the project and click View objects. Within a project, all mappings and message types are listed:

The filter icon allows you to filter within the columns. For example, you can activate the filter and filter for mapping in the column Type or write *ORDERS* in the column Path for easier access to the required objects.