It counts the items you have used while the command is active.
/cui [1|on|0|off|reset|show]
1 or on - Enables the plugin (starts counting)
0 or off - Disables the plugin (does not count anylonger)
reset - Well.. it resets the count
show - Shows you how many which item you've used
- Build with maven
- Drop .jar into /plugins folder