How to differentiate debug and release build in launch.json

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "type": "monkeyc",
            "request": "launch",
            "name": "Run App",
            "stopAtLaunch": false,
            "device": "${command:GetTargetDevice}"
        }
    ]
}

How can I "split" the above configuration and keep one being a debug build and the other one a release build?