Creating separators and headers in the menu

[marvoh]

Describe your issue here.
Hello,

There seems to be a problem with the customisation of the menu.

The classes attributes doesn't seem to be reflecting when you add something like this: 'classes' => 'text-danger text-uppercase'.

I'm also trying to create items separated with headers in a single drop-down items so that related functionality can be bundled together. Is this possible? I've gone through the documentation and not come across it. I tried adding a 'header' attribute but there was also no effect and also setting attribute 'type' as header but still no success. I've added a screenshot of something similar so you can have an idea.

I would appreciate your guidance