[Luke can definitely see that, and he appreciates the reaction. It's nice, compared to the blase way so many people are with the Battle Dome. Himself included.]

That depends on how complicated you want to make it. Here.

[He presses a button to start a fresh sim, just a blank room.]

There, nothing but a big white room. Try pushing some of these...[He points] and see what it adds. It's more a matter of patience and learning what goes where.