Its hidden in that addon:
https://github.com/BerndiVader/KeepItemsAfterDeath
Someone here asked if it is possible to use the libsdisguise ingame command for mobs. Well now it is. You can use all the disguise options you have with /d for your mobs now! Download the jar from the github link above and install it as usual in your plugins. ̶f̶̶o̶̶r̶̶ ̶̶l̶̶i̶̶b̶̶s̶̶d̶̶i̶̶s̶̶g̶̶u̶̶i̶̶s̶̶e̶̶ ̶̶9̶̶.̶̶0̶̶ ̶̶o̶̶r̶̶ ̶̶h̶̶i̶̶g̶̶h̶̶e̶̶r̶̶. Compatible with Bukkit 1.8 - 1.10.2 & LibsDisguise...
Advanced LibsDisguise Command
https://github.com/BerndiVader/KeepItemsAfterDeath
Someone here asked if it is possible to use the libsdisguise ingame command for mobs. Well now it is. You can use all the disguise options you have with /d for your mobs now! Download the jar from the github link above and install it as usual in your plugins. ̶f̶̶o̶̶r̶̶ ̶̶l̶̶i̶̶b̶̶s̶̶d̶̶i̶̶s̶̶g̶̶u̶̶i̶̶s̶̶e̶̶ ̶̶9̶̶.̶̶0̶̶ ̶̶o̶̶r̶̶ ̶̶h̶̶i̶̶g̶̶h̶̶e̶̶r̶̶. Compatible with Bukkit 1.8 - 1.10.2 & LibsDisguise...
Advanced LibsDisguise Command