Rule Machine - Get peer assistance here with setting up rules

There is a User Guide, although that’s not much of a tutorial. The original Rule Machine post is probably the most in depth discussion of how it works.

The easiest way to go about selectively disabling a SmartApp, be it a Rule or just about anything, is to restrict it to a special mode, one that you don’t use, one that exists solely for this purpose. You could call it Disable. Then in the More Options section of a Rule, select Only When Mode is and set it to Disable. Then, that rule is toast until you remove the restriction.

If you want to do this programmatically, you could use Enable/Disable with private Boolean, also under More Options. Some other rule could set this rule’s private Boolean to false, and that would disable it, or set it back to true to re-enable it.