I was inspired to make this after my mother abseiled the Spinnaker Tower in Portsmouth to raise money for a charity a few years ago and didn't have the opportunity to do so until now. To use this project, simply use the <- and -> arrows at the bottom to switch between viewing different sides, and click the buttons like you would in almost every other lift project here on Scratch. This particular fast vertically-moving cabin is “semi-automatic”, all you need to do to make it go is push the big ▼▲ button on the panel that says “push to travel” underneath. You can also use the ◄ | ► button to re-open the doors on either side (depending on which sides are available for the floor you are currently on). And, if you really want, just ring the alarm bell for fun. As indicated by the diagram below, this thing is programmed to firstly take passengers from Ground to the upper observation deck on level 105, then travel empty to 100 to pick up passengers exiting via the lower observation deck and take them down to B1 then travel empty back to Ground and start again. Oh yeah, it's supposed to be slow when going a short distance and fast when going a long distance. Have fun!