I knew the paying licence for QZPT was for saving material during course backup.
I just discovered that it is impossible to upload (or "restore") a set of "Quizported" hotPot exercises on a different Moodle unless one has bought the licence.
I was just wondering if it was meant to be that way of if it's just a bug.
As it is, the scheme prevents anyone from freely distibuting QZPTed sets of exercises.
Thanks for your answer.