Visual authoring
Visual authoring turns ordinary Unity prefab-variant overrides into a distributable Patch Manager manifest. It is the recommended workflow for hierarchy changes and Unity object references.
Editing prefab variants explains supported overrides, added GameObjects/components, automatic compilation, and effective preview.
Targets, stable IDs, and references explains how stock and patch-owned objects are identified and how references survive composition.
Dependencies, conflicts, and ordering shows how patches coordinate without relying on accidental load order.
If you only need a small generated change, the Code authoring section may be more direct.