Add option to edit and toggle labels

[taha-husain]

Please let me know if there's a way to have custom label or no label. If not, an addition to edit or disable labels would be great. Thank you.

[tetsuharuohzeki]

We don't have that.

I think it's nice to have an edit a label name but I don't have a time to implement it. Feel free to open a pull request.