Modding issues on UE5

I have the following problem. I’m making a custom mod for the game Poppy Playtime that every 10 seconds a monster appears in front of the player.
But I can’t get the monsters to move towards the player because there is no NavMesh nearby. And since I use “reference modding”, my options are limited only to making scripts in Blueprints.
So I want to ask, is there any potential way to solve this? Maybe to Spawn NavMesh via Blueprints or something else.