Making Levels in a quiz game

I followed a tutorial on making a quiz game and I want try to make levels for the game like Level 1, level 2 and so on but the code that I followed is kinda strange as you have to make your question and answer in another scene and although it allows for multiple rounds, it doesn’t allow the players to choose which level they want to play on…

here is the link to the tutorials

Looks like the questions are coming in through a JSON object, so you could have a pool of question packs that are chosen according to the difficulty setting. I.e. a menu choice loads pack Level1,Level2 etc.