What I want to achieve
I want to create a parent menu entry that points to an overview of sub menu entries. Like this:

---->

What’s the problem?
When I create such a parent entry with “no URL” (empty field “url”), I get an error message:

The URL in this case is “https:///icingaweb2/navigation/dashboard?name=filter-library”
The Nav-Item looks like:

Why do I expect this should work?
With the old “monitoring” module, this was not a problem and worked as expected.