BBEdit
This is a very simple Codeless Language Module for BBEdit. It defines Additions, Substitutions and Deletions as functions. Each edit mark can then be selected from the BBEdit function menu.

Installation
To install the CLM, navigate to the BBEdit Application Support folder:
Users/<user_name>/Library/Application Support/BBEdit/
Copy the file CriticCodelessLanguageModule.plist into the Language Modules directory
CriticMarkup Toolkit
We’ve put together a few tools to make editing with CriticMarkup a little easier. For help using CriticMarkup with the applications below, click a link.