You may add some buttons such as login, logout, and mypage to navigation by using a widget.
Please move to Dashboard >> Appearance >> Widgets. In this place, you may add the widget [JAVO] Menu button – LOGIN to the area Menu widget1. You can change the text of the buttons in this place. Also, you can set up the color of the button as you wish and change the icon of the button which appears on the mobile.
Before logging in, only the login button appears at navigation. Once you log in, the login button will disappear and the logout button and mypage button will appear.