Bone Editor

This is a script that modifies the skinned mesh renderer inspector in Unity to allow you to directly modify what bones the skinned mesh is bound to.

Using the script:
Using the script is super simple, just import the provided unitypackage and select a GameObject in your scene hierarchy that has a Skinned Mesh Renderer component, and click the button at the bottom of its inspector that says Show Bone Editor, as shown below.

Upon clicking the button, the Bone Editor should open, and you can modify that skinned mesh's bone transforms to your heart's content!

When you're done editing the bone transforms on your skinned mesh, don't forget to hit the button at the bottom of the inspector that's labeled Apply; this applies your changes! If you ever mess up the transforms and want to go back to what it was before, then fear not; the handy Revert button will bring your bone transforms back to what they originally were (as long as you haven't hit apply yet). If you have hit apply and wish to revert those changes, simply use Unity's built-in undo function to undo the change.