The Source pane displays all the data connections where data can be read (or read and written depending on the access type) and their source models where data is extracted showing all the objects that can be replicated.
For more information about the data connection access type, see Creating a data connection in the RPME.
You need to create at least one data connection and declare models to define where data should be extracted to be replicated to the model in the Target pane. You can create several data connections.
A data connection can contain several source models, you can select the models among a list of models open in the current workspace.
The following toolbar helps you manage sources: