How to edit existing tags

I just got started with Hazel and realized that I started with some tags that use capitalization which I want to remove. Naive question-but how do I fix that?
For instance I have a tag 'Statement' that I want to be 'statement'. But each time I type the new tag into Hazel it changes it for the old version. I've tried right clicking, Delete, Backspace but nothing seems to impact the tags.
Thanks.
For instance I have a tag 'Statement' that I want to be 'statement'. But each time I type the new tag into Hazel it changes it for the old version. I've tried right clicking, Delete, Backspace but nothing seems to impact the tags.
Thanks.