примерно так делается по первому вопросу
{
growEditionSizeTo: 9995
layersOrder: [
{ name: "type" },
{ name: "body" },
{ name: "eyes" },
{ name: "head" },
{ name: "mouth" },
{ name: "weapon" },
],
},
{
growEditionSizeTo: 10000,
layersOrder: [
{ name: "zombie type" },
{ name: "zombie body" },
{...