Just edit your "Config.json" file on the Server folder --> Resources
The lane called "paperdoll"
And order from the first mask (player) to the last mask
If the hair will be first only put "Hair"
"Helmet"
If the helmet be first put "Helmet"
"Hair"
(WHY YOU WILL DO THIS?!?!?!?) hahaha
Examples: If you want to show the hair behind the helmet only change this
WARNING!: Change on all directions! (Up,Down,Right,Left) or you will get a critical error!