Custom Modules

Hey,

I am going through the steps listed here, to learn about custom module development: https://docs.kentico.com/k12/custom-development/creating-custom-modules

I've reached the end, but can't find the newly created module to start testing adding/editing items:

"The user interface of the custom module is now ready. If you refresh the administration interface header, you can find the Company overview application in the Custom category."

I'm not sure where I should be looking? I've tried clicking cog item, and searching for "company..." but nothing comes up..