Trying to do a top-row file menu

I am curious if anyone has an example of a typical file menu at the top of a page? I have been playing around with New-UDMenu and a couple other actions, but am unable to get what I am after. I was also looking through the current help file, and I see a section under the main Dashboards heading where you can customize the dashboard menu, but this doesn’t seem to work for me. Even copying and pasting the exact code in the example gives me no menu. If anyone has dome something similar, or could point me in the right direction, I would appreciate it.

Product: PowerShell Universal
Version: 3.7.8