Trigger an action if a Condition Flag changes state?

Hard to explain - essentially I want an action to be triggered when I check the checkbox for the condition flag on the controls, and a different action to be triggered when I uncheck the checkbox for the condition flags on the controls. Know I can do the first part, second part not sure and don't think it's an addition.

Why not do this:

• Hide the condition flag from the controls so it is not visible (I forgot the property for it).
• Create a button to toggle the flag. Or a button to check, another to uncheck.
• In the button actions set or unset the condition flag, and at the same time do also whatever other actions you want.

You can even link the button to the condition flag so it becomes 'activated' visually when the flag is set.