Is is currently possible to have more than 1 item bank in a "larger" item bank (like folders within folders)? My vision as I'm making a quiz in New Quizzes is that there are 2 versions of a question, and students will randomly get one of those versions in their quiz. I don't want all of my students to get version A and version B, but have it randomized. I'm thinking that it will look similar to what the item banks look like now, but now I have the option to add all/random from various banks. 

I saw a similar question about the stimulus and its linked questions being inserted into a quiz together through item banks, but no answer.