Load Design (File Menu) (System Console)
You access this command by clicking  on the System Console. 
You must have Platform Designer open to access the System Console.
Opens the Load Design dialog box, which helps you load a Intel Quartus Prime Project File (.qpf) Definition into the System Console.
Note: To automatically instantiate and link designs after they have been
                loaded into the System Console, on the  menu, click . In the Device dialog box,
                click Device and Pin Options, and then turn
                on Auto usercode.