Advanced Settings are available on all platforms except Android
Advanced Settings allow you use a configuration file to set settings that may not be available in the connection or hosting settings tab.
To change Advanced Settings click
1. Open Advanced Connection Settings in the connection menu
2. Add your configuration line on a new line, or modify an existing line
3. Save and overwrite the existing file
4. Restart Parsec
You can find a list of applicable settings here
Or you can find the config.txt file in your file system
Windows
C:\Users\%username%\AppData\Roaming\Parsec\config.txt
macOS / Linux / Pi
~/.parsec/config.txt