Use the Duplicate Source dialog to create a new source for file transfers by copying an existing one. How?
This dialog appears when you:
Select the source to copy and then the Duplicate icon in the left pane navigator on the Design page
Right-click the source to copy in the left pane navigator on the Design page and select the Duplicate command from the pop-up menu
You can set additional properties for the source after you create it.
"Duplicating an Existing Source" in Using Oracle Managed File Transfer