Warning - How to Save Your Work and Correctly Use Enfusion Prefabs WARNING: In Enfusion, the World Editor is used to edit worlds but also to create or modify prefabs (which is what we’re doing). To modify prefabs, open the Resource Browser, locate your prefab, double-click on it, and click on Edit Prefab. From this point, you can modify your vehicle prefab or anything else (press Ctrl + S to save). You can also modify prefab parameters by placing them in a world sub-scene. To save your changes, click Apply to Prefab and select the prefab in the window that has just opened.