CMI Mirror Building allowed me to do something that was impossible with WorldEdit. Using WorldEdit in this situation would have destroyed much of my existing work for reasons I explain in the video.
Using CMI here saved me a great deal of time and stress finishing this build. I highly recommend any builders check this out, and request your admins install the plugin if you feel it will help you both.
CMI is a premium plugin by Zrips; this video is not sponsored content, and I was not compensated to share this information. These are my own opinions and impressions of a product I paid for out of pocket!
I stream practice sessions for my tutorials and less educational putt-around-my-server streams at twitch.tv/smellyonionman, with previews and notes 
Live server and web site are www.smellycraft.com
Join our Discord at for topic requests and previews, upcoming stream times, and great company. Most recent invite is always at http://smellycraft.com/discord
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