How to use World Partition system to load/unload in-game generated Actors?

The situation is that we need to generate a world map based on a random seed and load the generated map in the game. We hope that the game map can expand infinitely with coordinate changes, just like Minecraft. When learning about the new features of UE5, we found that the World Partition system seems to be able to handle the loading and unloading of map resources for us. But when we got into the actual development process, we found that the World Partition system seemed to only be able to handle Actors that were already in the editor, and those Actors that were generated in the game were completely out of the control of the World Partition system, even if it has been set to Is Spatially Loaded.