Pass custom value to in built xApi statements

Hi, 

Thanks for taking your time to help me with this. As for the tutorials you suggested, yes, I reviewed all of them and was able to send a custom xApi statement by setting my custom variable, which I got from the URL.

Also, this custom xApi statement was stored in LRS without any issues.

As you can see, the value of my variable is stored as "CourseID_112996" in the Interacted xApi Statement. My concern is how I can set this variable to Articulated-generated xApi statements. For example, both "Jimmy experienced Intro" and "Jimmy attempted MathGame" are created within the articulate tool. Not by me. Basically, I am creating a course in an LMS. Articulate content is only a part of that course. Therefore, I like to store my course ID in xApi statements when users interact with the course. As for the custom Xapi statements, I am able to store my course ID like your tutorials suggested. But I also want to set courseId to in-built xApi statements as well, so I can query the user progress with courseId. That's what I am trying to achieve. With your help, I was able to add custom variables to my custom xApi statements. But my main concern is how I can set my variable to xApi statements created with articulate.