Greetings, it really required a list to select and two text boxes to show the result one for the title and the other for the subtitle but as I do not understand that how to do it I assumed that another selection list is necessary. I don't think that with a selection list control you can fill two text boxes with different information. Then, I left both of them so that whoever helped me would decide the most convenient one.
I will delete the last textbox control because it seems to be convenient when growing up.
I am very grateful for your kind support.