How to put items under more button in navigation m

I'd like to have just home, people, events forum blogs and chat in navigation menu with all other items under the more button. How do I accomplish this? Can anyone tell me, please?

You cannot just move things to the more button. Items get moved there automatically for anything that does not fit on the main menu based on the number of items you have set to show in the main menu.

So To get something close to what your want, move those 6 items in the menu builder to the beginning of the menu so they appear first. Then go into Admin->Settings->Templates. Then click on the Settings tab in the templates section. There you will see two items to change.

Number of main menu tabs visible to members outside of "more" tab:    
Number of main menu tabs visible to guests outside of "more" tab:

The default value for both of those settings is 16. Change it to 6. Then only the first 6 items will be on the menu, the rest will appear under more.

Thank you very much!