Post: #2

No sorry there are no "unused" layers on players, what you have are:

layer_hand1 1
layer_hand2 2
layer_shoes 3
layer_pants 4 // bone legs + pants.
layer_shirt 5
layer_helm 6
layer_gloves 7
layer_ring 8
layer_talisman 9 // talisman (se and ml)
layer_collar 10 // gorget or necklace.
layer_hair 11
layer_half_apron 12
layer_chest 13 // armor chest
layer_wrist 14 // watch
layer_light 15 // a itemid_light_src equip item can be put here.
layer_beard 16 // try to have only men have this.
layer_tunic 17 // jester suit or full apron.
layer_ears 18 // earrings
layer_arms 19 // armor
layer_cape 20 // cape
layer_pack 21 // only used by itemid_backpack
layer_robe 22 // robe over all.
layer_skirt 23 // skirt or kilt.
layer_legs 24 // 0x18 = plate legs.