User:DannyS712/copyvio-check

copyvio-check (source) is a script which displays the % of copyvio in a separate section of the info menu of the NPP toolset.

A screenshot of the script
Importation

This script can be imported to skin.js or common.js by adding:
importScript('User:DannyS712/copyvio-check.js'); // [[User:DannyS712/copyvio-check.js]]
or
{{subst:Iusc|User:DannyS712/copyvio-check.js}}