You Can Grab Objects and Move Them
Every time a new Bethesda game comes out, one of my friends likes to tell me about the time he setup his house in Elder Scrolls 3: Morrowind with all of his gear and trinkets and loot. I've seen it, it looks great. If you want to do something similar in Fallout 4, you can.
You can grab just about anything in the game if you use the interact button. That'll be A, E, or X depending on which system you're using. Walk up to an object, hit the appropriate button, and you'll stary carrying what you're looking at.
It's a great way to fill up an entire house with Nuka Cola, vodka, or cigarette cartons.