NBT on the template item:
{copycounter: 3, TemplateName: "", UUID: "2bc79549-8d6c-4074-afa6-1be0c75737e7", startPos: {X: -4960, Y: 97, Z: -5013}, itemcountmap: [{item: 7463, meta: 0, count: 20}, {item: 156, meta: 0, count: 8}, {item: 7462, meta: 0, count: 15}, {item: 7470, meta: 0, count: 12}, {item: 155, meta: 0, count: 20}, {item: 7465, meta: 0, count: 8}], endPos: {X: -4968, Y: 99, Z: -5005}}

"Copy" button output:
{stateIntArray:[I;1,2,3,3,3,3,3,2,2,1,2,2,2,3,4,4,4,4,4,3,5,6,4,6,5,3,4,5,5,5,4,3,7,8,9,3,4,5,2,5,4,3,10,9,4,2,4,10,2,3,4,5,5,5,4,3,7,8,3,4,4,4,4,4,3,5,11,4,11,5,2,3,3,3,3,3,2,2,12,2,2,2,12],dim:0,posIntArray:[I;16252932,16318465,16318466,16318467,16318468,16318469,16318470,16318471,16318721,16318724,16318727,16318977,16318983,16384001,16384002,16384003,16384004,16384005,16384006,16384007,16384258,16384259,16384260,16384261,16384262,16449537,16449538,16449539,16449540,16449541,16449542,16449543,16449794,16449798,16515072,16515073,16515074,16515075,16515076,16515077,16515078,16515079,16515080,16515329,16515330,16515332,16515334,16515335,16515588,16580609,16580610,16580611,16580612,16580613,16580614,16580615,16580866,16580870,16646145,16646146,16646147,16646148,16646149,16646150,16646151,16646402,16646403,16646404,16646405,16646406,16711681,16711682,16711683,16711684,16711685,16711686,16711687,16711937,16711940,16711943,16712193,16712199,4],startPos:{X:-4960,Y:97,Z:-5013},mapIntState:[{mapSlot:1s,mapState:{Properties:{half:"bottom",shape:"straight",facing:"east"},Name:"minecraft:quartz_stairs"}},{mapSlot:2s,mapState:{Properties:{axis:"y"},Name:"wizardry:wisdom_wood_log"}},{mapSlot:3s,mapState:{Name:"wizardry:wisdom_wood_planks"}},{mapSlot:4s,mapState:{Properties:{variant:"default"},Name:"minecraft:quartz_block"}},{mapSlot:5s,mapState:{Name:"wizardry:wisdom_wood_pigmented_planks"}},{mapSlot:6s,mapState:{Properties:{half:"bottom",shape:"straight",facing:"east"},Name:"wizardry:wisdom_wood_stairs"}},{mapSlot:7s,mapState:{Properties:{half:"bottom",shape:"straight",facing:"south"},Name:"wizardry:wisdom_wood_stairs"}},{mapSlot:8s,mapState:{Properties:{half:"bottom",shape:"straight",facing:"north"},Name:"wizardry:wisdom_wood_stairs"}},{mapSlot:9s,mapState:{Properties:{half:"bottom",shape:"straight",facing:"south"},Name:"minecraft:quartz_stairs"}},{mapSlot:10s,mapState:{Properties:{half:"bottom",shape:"straight",facing:"north"},Name:"minecraft:quartz_stairs"}},{mapSlot:11s,mapState:{Properties:{half:"bottom",shape:"straight",facing:"west"},Name:"wizardry:wisdom_wood_stairs"}},{mapSlot:12s,mapState:{Properties:{half:"bottom",shape:"straight",facing:"west"},Name:"minecraft:quartz_stairs"}}],endPos:{X:-4968,Y:99,Z:-5005}}