Missing template features in navigation

Hello,

Some features in my navigation are missing, for example I can’t choose portfolio posts in my menu. I can only choose pages, posts, custom links and categories to link it with my menu.
Furthermore, I can not add a button to my main navigation. I can only type in “navigation label”, there are no fields for “URL”, “title attribute” or “css classes”.
How can I solve that?

Thanks in advance!