This tutorial demonstrates how to establish communication between Unreal Engine PCG graphs and Blueprints. It covers how to pass parameters from a PCG graph into Blueprint actors, as well as how Blueprint variables can dynamically control PCG graph behavior.
The example showcased implements a distance-based culling system for PCG-spawned actors, illustrating how player-driven variables can influence spawn density and visibility in real time.
https://dev.epicgames.com/community/learning/tutorials/1mVL/unreal-engine-ue5-pcg-tutorial-control-spawned-actors-with-blueprint-variables