A bit of learning curve but I am getting the hang of task chain in moodle 2.8. Maybe I am missing something but a couple of questions:
1. When I go to edit a chain (for example I want to replace a version of a hot potatoes exercise or an hot potatoes exercise that has an error in it), I click on "edit task". Then I click on the exercise I want to edit, and it takes me to the source (or source folder). I open the folder and click on the exercise I want to replace my existing exercise for. I am then presented with "set main file" button and "update" button. If I just want to replace one exercise, which should I click on? I think "update" just adds all the files/exercises in the folder-doesn't it? Will "set main file", just replace that one exercise then? If so, shouldn't there be another button like "choose this task/exercise only"?
2. In quizport, we could re-grade student attempts. This was particularly useful when we had changed the grade policy or some grading conditions. I see, "delete attempts", but I don't seem to be able to find "re-grade".
Thanks as always