I’ve created a small, free utility that allows the creation of multiple custom inspectors for a single class.
Download (.unitypackage):
http://dl.dropbox.com/u/33426743/SelectableInspector.unitypackage
GitHub Repo:
https://github.com/Thinksquirrel-Software/Selectable-Inspector
This is very simple to implement (just replace OnInspectorGUI with a DrawInspectorGUI method).
Developers: Feel free to redistribute it in your asset packages, especially if you have inspectors modifying common Unity components such as the Transform/Camera/etc…
Let me know if you guys catch any bugs. Would love to see this functionality in Unity by default whenever more than one custom inspector is present!
I will give the reference to your work in my topic.