May I please have many more than 50 daily simulations? I am an audio engineering instructor, not a design engineer, and used them up very quickly. I would like to use this wonderful software for teaching but my students will use up 50 simulations even faster. May I suggest: do not set a maximum daily number of simulations. Instead set a minimum time allowed between simulations. Maybe 30 seconds? That should protect against a denial of service attack but allow unlimited work by legitimate users. The current limit is very discouraging to users, I believe. Thank you! Michael Schulze Professor Lamont School of Music University of Denver U.S.A.