Display users IP in Wordpress and Modify WHMCS theme functions

I have a website [login to view URL] and I need some custom work done to both the wordpress frontend and the WHMCS backend. I am attaching pictures to better represent what I need done. Wordpress Add a label showing the users IP address to the top bar of the website. This must be done using the child theme and not the parent theme. see [login to view URL] WHMCS Make the following PHP script [login to view URL] authorize off of users with an active WHMCS subscription. Move the VPN Client downloads at the bottom of the screen to the menu on the left under VPN Downloads and remove the VPN config file download completely See the [login to view URL] Create new menu item called VPN Management and add the links to the Information tab, change password tab, enable/disable Viscosity and server status. See [login to view URL]