Based on the lack of info the only way of answering this is to agree and say yes use variables. What do you mean by save your settings, you mean save the game after it is closed or save the choices picked going to a new layout? If the latter you use a global variable.
Hello, —. Yes, I imagined I should have to use variables, but I wasn't sure enough.
I was referring save the choices picked going to a new layout, yes.
How I could create that global variable (or various) to make it work?
Thank you so much for your time!