Arduino+App Inventor 2 Bluetooth guidance

I'd like to pass 14 integers from Arduino to App Inventor 2, let the user alter them a bit, then pass them back to the Arduino, all via Bluetooth using an HC-05.

Could someone point me to a good example of how this is typically done? There are many examples available of how to turn on an LED, but this seems harder for me to find.

Thanks!

Bluetooth is immaterial to this. You Send the data with Serial.print. You may need this as well.