Help generating random landscapes

I am new to blueprints so I do not have an extensive knowledge of the inner workings yet. I could use some guidance on how to achieve random Landscapes.
What I am trying to do is create a new random landscape when the player hits the center of the previous landscape. I am only going in one direction so there is no need to generate more than one direction.
I have been able to generate a random landscape on start with world composition but have not been able to get a new landscape to spawn in before hitting the edge.

I am looking for any help or direction to any resources that could help me spawn random landscapes (not procedural). I have been watching a few tutorials and reading the documentation but so far have not been able to resolve this yet.

Thanks in advance for any help.