How to watch multiple folders with nodemon?

I need something like this:

nodemon.json:

[{
  "watch": ["src/api-gateway"],
  "ext": "ts",
  "ignore": ["src/**/*.spec.ts"],
  "exec": "ts-node ./src/api-gateway/main.ts"
},
{
  "watch": ["src/services/ping-service"],
  "ext": "ts",
  "ignore": ["src/**/*.spec.ts"],
  "exec": "ts-node ./src/services/ping-service/ping-service.ts"  
}]

Is that possible, or if there is some alternative way to do it?