How to move back in the Change process

I've been trying to implement the change management process and I have to say that it is VERY clunky and not intuitive. This is a huge surprise given how friendly some of the other modules of the SDP product are.

With that said, i have a change that has gotten all the way to the implementation stage and needed to be backed out. because of what we found, we want to re-work the plan and re-submit. There doesn't appear to be an easy way to do this. Do I need to just close this change and start from scratch, or am I missing something here? does the change manager have to move it back to a previous stage? If the responsibilities of the roles were more clearly defined this may not be an issue.

Can someone please help here?