I like to ask certain kinds of short-answer questions in ordered clusters. Asking such questions one at a time greatly increases the accuracy of auto-grading. I might have ten clusters of four related questions that need to be asked in strict order. I wish that I could tell Populi to insert two clusters at random. Thanks! M
[Similarly, think how powerful it would be to instruct Populi: "If "this" (random) question then "that" question after it.]