This mod is FAR FROM FINISHED, and initially just created for our private Survival Server. As a challenge I'm trying to make it as user-friendly as possible. (It ain't there yet tho ;) )

Current feature-set

Server Side

Features

• Custom join message
  
• Custom quit message
  
• Custom chat message
  
• Tab list dimension indicator
  
  
  
  
• Config
  • Configurable messages
  • Feature toggle
  • Version "control"
• Shared Ender Chest
  • Shared EC Access control (via config)
• Vein miner
  

Commands

• /spectator | Essentially server-side free-cam, you get put in spectator and are able to fly around, once you use the command again you get put back to where you were.
• /slimechunk (/sc) | See if you're currently in a slimechunk

Client Side

• Teleportation Angle Viewer
  

Features to come

Server Side

• Telekinesis

Other than that no more features! Be sure to give your idea by opening an issue with the label Feature Request