Text item in menu

Use Menu Groups?

Not using groups, but rather just free text. Say I have Reports, instead of a dropdown, I can have the group items or links under that.

Citing excerpt ex https://xlinesoft.com/phprunner/docs/menu_itemmodify.htm
Methods
getLinkType()
gets the link type.
Note: The link types are: Internal (link to a page generated by PHPRunner, e.g. List, Print etc.), External (link to any external web page), None (if menu item is not a link: for example, a group or separator)_.
unquote
It is my understanding that the BOLD and UNDERLINED text seen above directly speaks on the wished issue, for inspiration purpose only.

Won't work either.
Best example I can show is the AdminLTE 3 template found at https://adminlte.io/themes/v3/
On the left bar, you can see "EXAMPLES", "MISCELLANEOUS", "MULTI LEVEL EXAMPLE", and "LABELS" as headers on the menu with sub items under them. That's what I'm looking for and should be an option on future version if there is no way to do that. I would imagine it wouldn't be very hard to implement into the program.

For the vertical menu layout, the Tree-like menu checkbox allows displaying the expanding/collapsing cascade menu.

Screenshot excerpt ex : https://xlinesoft.com/phprunner/docs/menu_builder.htm
Got your point. What I think might work, is seen above, though not exactly the same as per your sample URL content, yet

one of the most easy options to go on this bootstrap issue WITHOUT a lot of manual coding at all.

That's what I'm currently using, but I would like to divide the menu into subsections, and then each subsection has applications and groups of applications.