I'm a little rusty on the techniques for creating a light fixture.
Specifically, I want to create a fixture that has three bulbs in it. I
successfully created one of the lamps that has a bulb, or a light source,
and it glows in a rendering. I thought I could load that lamp and place
three instances in a generic wall-based family and they would still glow,
but they do not. If I create a wall-based light fixture, there is that
light source that I don't want; I want the three lamps. I'm sure there are
tutorials somewhere, but I can't find them. Thanks.