Hi ,
Here are a few resources for level streaming that you have available to you currently:
https://docs.unrealengine.com/latest/INT/Engine/Blueprints/UserGuide/Types/LevelBlueprint/index.html
I would also highly recommend checking out the forums, many of the users are willing to assist their peers on subjects such as this! I am going to mark this question as answered for tracking purposes. If your problem persists please feel free to comment and let us know!