Edit: Unity has this in preview feature, use that instead: https://forum.unity.com/threads/pre...ab-asset-editing-from-project-browser.640660/ While we're waiting for an official solution, here is a workaround. This inspector overrides the current prefab importer editor, and allows you to see and edit values like before. It even supports multi select much like the regular inspector, and custom editors work nicely too. I also added the Open prefab button at the bottom. The differences are that editing values causes a reimport and reload, and that the headers are a bit different, though with some more editor scripting you can make this the same as well. Here is a little demo: Code here, just drop this in an Editor folder. Or use the attached unitypackage. https://gist.github.com/TJHeuvel/825c78f27a44d9411a56baa1526466c0 Thanks Unity for the Cs reference source!