There are some parts of the Outliner that confuse me.

First of all, when you click on the Default lights, it lists the lights you have in your scene a second time under it. Why list them twice?

Second, when you go up to the menu and uncheck DAG, you get a long list of I-don’t-know-what in the Outliner. What is all that stuff listed in the Outliner, and what is it for?

I understand the usual Transform nodes and Shape nodes being listed, but not all this extra stuff in the Outliner that I did not create in the scene.

Thanks
Kori