Understand Data Connections overview
For a dedicated Project in a Solution, you can access the Data Connections overview by clicking on the Data Connections menu in the navigation bar inside a Project's Branch:

It is made of several areas:

Left menu
In the Data Connections overview left menu, you can navigate through the different tabs to:
- Manage Source Systems

- Manage Linked Projects
- Import a Project to be used as a Linked Project

- Export the Project to be used as a Linked Project

- More input about why you should use Linked Projects here: Use Linked Projects.
- Import a Project to be used as a Linked Project
Content
The Data Connections overview displays content according to the selected tabs.