pins in Atmega328 for lights

[Fuegomp3]

Hello, I want to build the PIUclone with the Arduino UNO, so that it turns on the lights, both in the cabinet and on the platforms, but I can't understand how to connect the 74hc595, what would be the pins of the Arduino, or better, the pins of the Atmega328 that I should connect to the 74hc595? And another question, if I use the "simple" model, does it also have lights on or is it just inputs? In advance, thank you very much for responding.

Best regards, Nelson