Create folder in item manager

How do I create a folder in the item manager?

I took a drafting course about 30+ years ago (paper, pencils, and rulers) and am struggling to even get started.

Thank you


Here is a short video, I hope it helps:

That is very simple. Thank you!

The basic, get started type information like this is what I am looking for. I have used and understand (at a beginner level) functions like extrude, it’s just the learning my way around that is just not that intuitive for me.

Thank you again!