HELP! UE5 C++ How to use ALandscape with ALandscapeStreamingProxy to spawn proxy in landscape

Hi. I’m new to UE C++ and can’t find an example on how to create a Landscape and add a LandscapeStremingProxy to it. The goal I want to achieve is to create an initial landscape with 1 initial proxy and then add a new proxy to the initial landscape from bp.

I Make a BlueprintFunctionLibrary with 2 func to create landscape and landscape streaming proxy. And its works but in separete.

This is a func code to spawn ALandscape (same uses to spawn ALandscapeStremingProxy)

.h

Blueprints