PrisonCraft

List of features:
-Allow retention of metadata (Useful for mod blocks)
-Better Configs (In-game command for changing conversion whitelist)
-Single player worlds automatically give player full permissions (same as from server or rcon)
-Shift right-clicking resets the config tool rather than locking (locking removed)
-Logging for Jailing to CSV file (optional)
-Fixed cross-dimensional jailing
-Added WIP tools to jail and unjail players. (functional, but not complete)
-Added region highlighting for the configuration tool. Colors probably will change...

Caveats

Pointless and "dangerous" on singleplayer worlds, as you can only jail yourself and then couldn't unjail yourself.