How to change root (first) bone in armature This seems like a common question but I can't find anyone talking about it.

I made a very complex armature, spent a couple days on it, only to realize the root bone (I call handle) is in the wrong place. It is in the middle of the spine, I want the "butt" bone to be the new root bone so that I can bend the spine normally. Messing with parenting in edit mode doesn't seem to work or is too complicated for me.

Here is the .blend file:



And a screenshot:



How do I fix this ?
Just “add bone” from menu to add a new bone that isn’t the child of anything. Then Ctrl+P make it the parent of the existing root and choose “keep offset.” The root is “the bone that has no parent.”