I need to add a monorail with a passing train in the distance and some flickerin

i need to add a monorail with a passing train in the distance and some flickering lights in the building to make it look real. then need to add a a desk with two computers because that's where i will be sitting facing the camera a desk like this but only the first two computers that have their back facing the camera and a keyboard and mouse basically like a home office in the office scene can add some live light to the candles in the room as well etc Monitor back is facing camera side