Using Survey Question Storyline block in Rise

I am building a survey question storyline block that contains a results slide.  Each question is an essay question that users are required to answer and then the results slide allows them to review, print, or retake their questions.  This storyline block will be inserted in a Rise course as a way for users to respond to videos they watch in essay form.  It's my understanding from items I've reviewed in the Rise documentation that these survey question responses will not report back to our LMS and therefore we plan to tell users specifically on the results slide and inside the Rise course that they must print their answers or save them to their computer as they will not be maintained in the course or the LMS.    They will be asked to bring the answers to the video discussions to a face-to-face session as follow-up.

Is there a way in setting up the Storyline survey questions that I can specify that the answers to the survey question must be a minimum number of words?  We noted in testing that setting each essay question as required means they must enter some type of response, but that can be as much as one letter or one word.  Is there a way to set a minimum of a sentence (or 10 words)?  I can't seem to find any way to do this in storyline and my conclusion is that it may not be possible, but I just wanted to check to see if anyone has any insight on this.