Can someone tell me how to change the level?

Hey, eveybody. I'm 16 years old and a novice to GameEditor. I plan on making a game for my Computer Project this year, and I was wondering how to change the level. Keep in mind that I have an infinite 'land' Actor.
P.S If possible, give a method which does not involve complicated coding, or coding at all, since I have just started learning C++.
P.S If possible, give a method which does not involve complicated coding, or coding at all, since I have just started learning C++.
