The Application Passwords are a way to quickly authenticate with other Devolutions applications like Remote Desktop Manager.
Click on Create new application password or on the "+" icon to get started.
Name the New Application Password to identify the application you will be using it with then click Next.
Copy the code by clicking on the Copy to clipboard icon and paste it in the application you created it for.
You can delete and create as many Application Password has needed by clicking on the X next to it.