Hey there! You may want to have anything you want to keep consistent when switching scenes set as global variables. Under your project settings (top left) there is an option to set up global variables. As you do your research in one scene you could set the variables and when you return to that scene set everything according to those stored variables. It will still reset when you close and reopen the game. Thats where youd have to follow a game saving tutorial to write to a JSON file.