Login Logout Register Menu plugin allows you to add login, logout, register and profile links in the navigation menu easily.
The plugin provides you various settings in the admin area on the path Admin Area -> Settings -> Login Logout Register which you can use to customize it.
You can also use any of the following plugin shortcodes to display Login, Logout, Register and Profile links in the page content.
[llrmlogin] — Displays login link
[llrmregister] — Displays register link
[llrmloginlogout]– Displays login or logout link depending on whether the user is logged in or not
[llrmprofile] — Displays profile link
[llrmlogout] — Displays logout link
The plugin options are self-explanatory but if you have any question related to Login Logout Register Menu plugin then please ask it in the plugin free support forum here Login Logout Register Menu.