In Quiz Editing, there are two drop-down menus for selecting quiz categories (see attached image). When there is a large number of questions in the bank, the second one (which applies to "Move to >>" operations) appears closer to the function of "Add random questions from category:" than the ensemble of the first drop-down, the selection of questions, and the move button.

This is confusing, as when I scroll down past the large number of questions in the default category to get to the "Add random questions" function, I am left thinking this "Move to >>" drop-down menu of categories is associated with the "Add random questions from category:" which appears just after the drop-down.

Several times I've mistakenly added random questions from the "Default" category, because I chose the category in the "Move to >>" drop-down rather than the "Select a category" drop-down which is off the screen at the top.