This video showcases how to setup Ultra Dynamic Sky and Weather, Fluid Flux and Brushify for a complete beginner to get started with level creation.
You don't need any developer experience and can create amazing environments in a few minutes using these tools but they are not free.
Ultra Dynamic Sky - $39.99
https://www.unrealengine.com/marketpl...
Fluid Flux 2 - $349.99
https://www.unrealengine.com/marketpl...
Brushify Smart Brush System - $199.99
https://www.unrealengine.com/marketpl...