Question Requesting help with specialised custom menu

Hello Community,

yes i know that there multiple Topics for my specific Problem, so i started a new Thread.

I would like to have this structure in my Website:

If my user click the Forums button, the menu should (and its doing it so far ) do this here:

So far - so good.

*But*, when anyone clicks the button to create a topic in the forum, the submenus disappears and [JoomlaMenuItemForums] also lost its focus.

So, i thought it might be a good idea to restructe the menu:

But then [LinkToSingleArticleA], [LinkToForumCategoryA] and [LinkToForumCategoryB] are tabs of the forum above and not at that place where the submenus normally are.

I don't like that and would be happy if it would be possible to have the submenus where their should be - like any other Menu- and Submenuitem - and if the Menuitem for the forums hold its focus, when browsing in the forums.

I hope someone has a hint for me.
Thank you so far!

Btw: I found this here:

PS. If you want to keep your forum highlighted, you should use the same alias in both Kunena Menu and your main menu item.
docs.kunena.org/index.php/Customised_menus

But it seems not to work. All aliase are called "forum" and the highlighting is lost after clicking "new topic" for example.

mo2mo wrote: All aliases are called "forum" ...

Easy: change the name of the item that has the name "Forum" (in kunenamenu).

mo2mo wrote: ... and the highlighting is lost after clicking "new topic" for example.

But, for the most part, the active menu item remained highlighted when you click it, yes? Highlighting does not always work, it seems. Even in this website , on this forum you will find examples where menu items do not remain highlighted.