Hi,
I’m trying to create a plugin that adds a new top level page to the panel, like site and users. I also want the page to be listed inside the dropdown which you can find in the top left corner of the panel. Is that possible? And if yes, how? 
Thanks in advance
Robert
Yes, that thingy is called a Panel view and the documentation is here:
Example:
How embarassing 
Thank you very much, @texnixe
I make use of this feature in my Kirby Reporter Plugin. Let me know if I can help you out.
@RobertC No reason to be embarrassed at all, how can you find something when you don’t know what you are looking for?
Note that extending default Views currently doesn’t work as expected.