/setblock ~ ~1 ~ minecraft:structure_block 0 0 {metadata:"command",mirror:"NONE",ignoreEntities:0b,powered:0b,seed:0L,author:"Tanny",rotation:"NONE",posX:-1,mode:"LOAD",posY:-1,sizeX:0,posZ:-1,integrity:1.0f,showair:0b,x:742,name:"start",y:4,z:-305,id:"minecraft:structure_block",sizeY:0,sizeZ:0,showboundingbox:1b}