9.3. Linking Hardware Resource for Multiple FPGAs
If you are using more than one Intel FPGA board, you can set up a test with multiple devices linked to the same design. This setup is useful if you want to perform a link test between a transmitter and receiver on two separate devices. You can also load multiple Intel® Quartus® Prime projects and link between different systems. You can perform tests on separate and unrelated systems in a single Intel® Quartus® Prime instance.
To link a device, right click on the device within the devices folder in System Explorer. Select Link device to and the name of the .qpf project file for that device.