Saving Participants' Input Data in a Rise Course?

I'm not sure if this helps at all - it's not exactly what you are looking for, but there are two things we have done in RISE for clients recently:

1) added a Storyline block which has a slider-based survey which the learner can complete and gets the responses and results as a downloadable pdf at the end of the survey

2) created a downloadable notebook or learning journal that the learner can add to during the RISE course and, again, is downloadable at the end of the course. (this uses browser 'local storage' as RISE doesn't have variables)

Again, 2) uses Storyline blocks to capture the learner input - so you present something, then invite the learner to make notes and then at the end of the course the learner can click a button to download the notes - including their input - as a pdf.

In both cases, the pdf is created from a pdf form template which is picked up and populated by the JavaScript code in the Storyline blocks, The advantage of this is that you can create ANY pdf form and, so long as you use the field names in the code you don't have to make changes to the JavaScript

Here's a couple of demos that shows what I'm talking about:

https://demo12.profilelearning.com

https://demo9.profilelearning.com

Demonstration 9 is the Storyline version but it works if used in a RISE course. I will create a RISE demo of this and load it to our site if anyone would like to see that.

As I say - not an exact match to your requirements - but it does perhaps point in a direction you might explore (updating Googledocs rather than a pdf, for example).

Regards...