^^^ This is all you need to add a wireguard config file. ^^^

If for some reason you still want to use the GUI  
Here is my original tutorial

1. Install `nm-connection-editor` via your package manager.
    
2. Open the Advanced Network Configuration GUI, add a new connection & select WireGuard
    
    ![Screenshot from 2023-04-05 18-33-00](https://forum.manjaro.org/uploads/default/original/3X/f/d/fd94540395cf56a59e110db06603faeaf850bd2d.png)  
    ![Screenshot from 2023-04-05 18-33-20](https://forum.manjaro.org/uploads/default/original/3X/6/3/63aa2136115143db16d66cde327087f92b089721.png)
    
3. Use the following diagram to translate your WireGuard client config file to the Advanced Network Configuration GUI.
    
    [![HowTo](https://forum.manjaro.org/uploads/default/optimized/3X/1/7/177682f37daed1b4e8283f836fd57af349bc4852_2_690x388.jpeg)
    
    HowTo1920×1080 114 KB
    
    ](https://forum.manjaro.org/uploads/default/original/3X/1/7/177682f37daed1b4e8283f836fd57af349bc4852.jpeg "HowTo")
    

Enjoy your WireGuard VPN integrated into the OS!

Note: the “Listen port” will **not** be in your WireGuard client config.  I used 58909 & that worked for me.