Kinds of analysis using Quartus II

You assign pins via the assignment editor (or if you're using schematic input - which I dont really recommend if you want portability you can assign them on the diagram pins)

The DE1 reference manual will detail what all the pins are connected to so you can connect them up in your design.

I highly suggest you actually try and do a project in Quartus to learn how to use it - or use online training, rather than keep posting on the forums.