According to http://docs.moodle.org/19/en/Lesson_question_types#Matching_questions, I can add distractors to the list of possible answers in a matching question by leaving blank the "question" part of a question/answer pair and entering a wrong answer in the answer part.
But when I do this and save, the question/answer pairs containing the distractors are stripped out and disappear. Has anyone else experienced this?
I've tried entering a blank space in the question portion, but then the Lesson module just treats them like a regular question/answer pair.
I'm using 2.2.