Please understand that, as much as we would like to help you, we also want to help the rest of the community, too. When you post a question, please use a meaningful subject. People look for these subjects to find the answers they want, too, you know. People are unlikely to find any help when they see a subject called "3 questions/problems" (unless they, too, have 3 questions/problems).
Now, we've dealt with the 3 questions/problems and you're trying to extend this topic into a fourth question, but before this topic grows into a long meandering discussion that others will have difficulty following, I am going to have to ask you, politely, to (a)
search
the forum to see if your question has been asked and answered elsewhere and (b) if your question has not been asked and answered elsewhere, to start a new discussion topic.
Your question has been asked before ... many times. Just search for "Kunena Notice Menu item does not have Kunena menu" (leave out the quotes) and you'll get a
lot of results
Please: we ask everyone to keep to the one discussion topic. It makes it easier for you, it makes it easier for us as moderators, and it makes it easier for the whole community. The answers that we give to you may also help others searching for the same information. They won't easily find that information in a topic called "3 questions/problems", will they?

Thank you.