Multisco package from Rise Microlearning

Hi Heroes,

we created a Rise course (microlearning) that will be translated into 20+ languages. We have a request to create a landing page or a language-selector page from where the end users will choose their version of the course. 
The tracking of the microlearning is set to Passed/Incomplete (SCORM 2004, 4th edition). 

So, we need to create a multisco package that will have all of the languages merged into a single SCORM package. We created this in Articulate Storyline. 

How can we get the SCORM platform to track individual languages, and not the landing page that was created as a slide in Storyline? 

The desired behavior on the SCORM platform would be:
the user opens the landing page and selects the language. Once they completed the course in their language, the course reports Passed/Completed. 

We successfully merged the courses into a single SCORM, and uploaded it to the Scorm Cloud, but it tracks the landing page created in SL and not the individual languages. 

Let me know if anyone has an idea how to solve this or if you need more information.

Thanks in advance! ;)
Johnny