Draw Table tool De-mystified

Recently I was preparing to teach a PowerPoint class and one mystery I needed to solve (and then teach) was the "Draw Table" tool in PowerPoint. I had been told that this tool allows you to draw a custom table, but how to do it was a complete mystery to me. This tool is located under the Insert tab and can be found by clicking on the "Table" button. One of the options on the menu is "Draw Table:"
Once you've selected this tool, the cursor changes to look like a pencil. Once this has happened, draw the border of your new table to your desired specifications. If you don't get it right, don't worry--you can always resize the border later.

After you've drawn the border, you'll notice that the only thing you've got now is a giant cell, which is more or less useless. But here's the exciting part!
Now, go back to the Insert tab and the Draw Table tool and select it again. The pencil cursor should reappear.

You can now use your pencil cursor to draw custom rows and columns within your table. You can also draw diagonal lines! In this way, you can create your own custom drawn table.

Once you are satisfied with the rows and columns in your new table, press the ESC key to get rid of the pencil cursor. Now you can use the regular formatting options to make your table look great and interesting.

There you go--Draw Table tool de-mystified!

Here is an example of an empty table that I created using the Draw Table tool: