In your article you say:
“after a certain chain step is triggered, the default behavior is to add all preceding chain steps as well, keeping their respective order, in addition to the one that was triggered initially”
How do you change this “default behavior” so that it does not build previous steps? I would like two manual steps that must be executed in order, the first through the UI and then the second programmatically through an external system. I don’t want the user to circumvent the process by selecting the second one directly.
On that same note, how do I programmatically execute a promotion with the API?