Here is a step-by-step introduction to World Edit rotation, specifically how to rotate and tilt buildings. It was inspired by a popular “abandoned city” post shared on the Minecraft subreddit. The tutorial goes over the very basics as well as some important specifics with copying, rotating and pasting. I hope it is worthy of being helpful, comment any errors.
Original inspiration post: https://www.reddit.com/r/Minecraft/comments/ztm2w4/i_made_an_abandoned_city_in_minecraft/