Project references are automatically created when an object from outside the project is selected.
Procedure
For example, when defining a sub-process call, you select from a list of all the sub-processes in the workspace:
If the selected sub-process is not part of the project in which the sub-process call is located, a message is displayed asking if you want to add the project (which contains the selected sub-process) as a reference project. Click
Yes to create a reference to the project that contains the sub-process.
