That sounds like a great modification to the standard sawmill in the game! By adding the production of PrefabWall and moving the log loading trigger to the side for easier loading of entire trees, you've definitely improved the functionality and convenience of the sawmill.
It's good to hear that you've also fixed the PrefabWall spawn place to ensure everything works smoothly. These enhancements can make a significant difference in gameplay, providing a more realistic and efficient sawmill operation.
Players will likely appreciate these changes as they enhance the overall gaming experience and increase the level of detail and customization available in the game. Keep up the good work, and I'm sure your modifications will be well received by the community!