AWS .NET Core 3.1 Mock Lambda Test Tool - How to set up 2 or more functions for local testing

So I have a very simple aws-lambda-tools-defaults.json in my project:

{
  "profile": "default",
  "region": "us-east-2",
  "configuration": "Release",
  "framework": "netcoreapp3.1",
  "function-runtime": "dotnetcore3.1",
  "function-memory-size": 256,
  "function-timeout": 30,
  "function-handler": "LaCarte.RestaurantAdmin.EventHandlers::LaCarte.RestaurantAdmin.EventHandlers.Function::FunctionHandler"
}

It works, I can test my lambda code locally which is great. But I want to be able to test multiple lambdas, not just one. Does anyone else know how to change the JSON so that I can run multiple lambdas in the mock tool?

Thanks in advance,