How to add a component to a prefab and then save the prefab

Unity Engine
1

Have a gameobject that has many levels of children and I need to add specific components to the children only, not the parents. I know how to do this by hand, but it takes a long time on larger gameobjects. I know how to add components to a gameobject in code, but the problem is, I don’t know how to save that gameobject as a new, updated prefab.

Any suggestions on how to save an updated prefab? (possibly with keeping the original prefab untouched)

Any and all help is greatly appreciated. Thank you.

2

Inside the editor, you can use Unity - Scripting API: PrefabUtility.CreatePrefab . Note the replacement options available to this method.

3

Thank you so much Cherno. Could have sworn I went down that path before with no luck, but this time it worked perfectly.