Hello Jason and Tim and Happy Holidays to you too!
Thank you both for the information in your answers. I am aware of most of the scoring issues including the way Lectora pairs things for dnd exercises. However, I had the hope that maybe someone could provide some solutions using ready-made Lectora structures such as the “grade each question separately” (without using sections) (at least the option hinted at the possibility and I thought I was hoping I had not understood how it worked). The reason for this is to avoid novice lesson writers having to delve into the innards of Lectora – but that now seems inevitable.
Thank you for the great help from both of you.