Lighting Visualization Software with Off-line ION client

I am a high school theater director with tech classes busting at the seams. Unfortunately, I can't get time for every student to plot/hang/cue a show in the theater. So, I'd like to get my school to purchase some visualization software so students could virtually build/hang/cue scenes from shows as an in-class project. I would also like to use the off-line client so that students get virtual training on the light board. Two questions: 1. Is this possible? 2. Any recommendations on visualization software to pursue? We are still a PC school, but I would like to push them towards Mac (just a matter of personal preference), so ideas that work in both worlds would be extremely helpful. Thanks in advance!
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