Position Switcher with Only One Command

summon falling_block ~ ~1 ~ {Block:stone,Time:1,Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:activator_rail,Time:1,Passengers:[{id:commandblock_minecart,Command:"gamerule commandBlockOutput false"},{id:commandblock_minecart,Command:"fill ~2 ~-3 ~-2 ~8 ~ ~2 stained_hardened_clay 9 hollow"},{id:commandblock_minecart,Command:"fill ~2 ~-2 ~-2 ~8 ~-1 ~2 stained_glass 4 0 stained_hardened_clay"},{id:commandblock_minecart,Command:" scoreboard objectives add inhand dummy"},{id:commandblock_minecart,Command:" scoreboard objectives add craft dummy "},{id:commandblock_minecart,Command:" scoreboard objectives add switcher dummy "},{id:commandblock_minecart,Command:" scoreboard objectives add timer dummy"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a [\"\",{\"text\":\"Check out my \"},{\"text\":\"YT-Channel \",\"color\":\"dark_red\"},{\"text\":\"right -> \",\"color\":\"none\"},{\"text\":\"HERE\",\"color\":\"green\",\"bold\":true,\"underlined\":true,\"clickEvent\":{\"action\":\"open_url\",\"value\":\"https://www.YouTube.com/TheCreativeSimon\"}}]"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" title @a times 20 100 20"},{id:commandblock_minecart,Command:" title @a subtitle {\"text\":\"by Creative Simon\",\"color\":\"dark_red\"}"},{id:commandblock_minecart,Command:" title @a title {\"text\":\"Position Switcher\",\"color\":\"aqua\"}"},{id:commandblock_minecart,Command:"setblock ~1 ~-2 ~ wall_sign 4 0 {Text1:\"{\\\"text\\\":\\\"============\\\"}\",Text2:\"{\\\"text\\\":\\\"Click to destroy\\\"}\",Text3:\"{\\\"text\\\":\\\"this machine\\\"}\",Text4:\"{\\\"text\\\":\\\"============\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"fill ~ ~-1 ~-2 ~7 ~2 ~2 air\\\"}}\"}"},{id:commandblock_minecart,Command:"setblock ~1 ~-1 ~ wall_sign 4 0 {Text1:\"{\\\"text\\\":\\\"\\\"}\",Text2:\"{\\\"text\\\":\\\"Position Switcher\\\",\\\"color\\\":\\\"dark_blue\\\"}\",Text3:\"{\\\"text\\\":\\\"by Creative Simon\\\",\\\"color\\\":\\\"dark_red\\\"}\",Text4:\"{\\\"text\\\":\\\"\\\"}\"}"},{id:commandblock_minecart,Command:"fill ~3 ~-2 ~-1 ~7 ~-1 ~1 chain_command_block 5"},{id:commandblock_minecart,Command:"setblock ~3 ~-1 ~1 chain_command_block 2"},{id:commandblock_minecart,Command:"fill ~7 ~-1 ~1 ~4 ~-1 ~1 chain_command_block 4"},{id:commandblock_minecart,Command:"setblock ~7 ~-2 ~1 chain_command_block 1"},{id:commandblock_minecart,Command:"setblock ~3 ~-2 ~ chain_command_block 3"},{id:commandblock_minecart,Command:"fill ~7 ~-2 ~ ~4 ~-2 ~ chain_command_block 4"},{id:commandblock_minecart,Command:"setblock ~7 ~-2 ~-1 chain_command_block 3"},{id:commandblock_minecart,Command:"setblock ~3 ~-2 ~-1 repeating_command_block 5"},{id:commandblock_minecart,Command:"blockdata ~3 ~-1 ~ {auto:1,Command:\"kill @e[score_timer_min=40] \"}"},{id:commandblock_minecart,Command:"blockdata ~3 ~-1 ~1 {auto:1,Command:\"scoreboard players add @e[type=armor_stand,tag=entity] timer 1\"}"},{id:commandblock_minecart,Command:"blockdata ~4 ~-1 ~1 {auto:1,Command:\"scoreboard players add @e[type=armor_stand,tag=player] timer 1\"}"},{id:commandblock_minecart,Command:"blockdata ~5 ~-1 ~1 {auto:1,Command:\"scoreboard players add @e[type=snowball,score_switcher_min=1] timer 1\"}"},{id:commandblock_minecart,Command:"blockdata ~6 ~-1 ~1 {auto:1,Command:\"execute @e[type=armor_stand,tag=entity] ~ ~ ~ execute @p[r=1] ~ ~ ~ kill @e[type=armor_stand,tag=entity]\"}"},{id:commandblock_minecart,Command:"blockdata ~7 ~-1 ~1 {auto:1,Command:\"execute @e[type=armor_stand,tag=entity] ~ ~ ~ execute @p[r=1] ~ ~ ~ kill @e[type=armor_stand,tag=player]\"}"},{id:commandblock_minecart,Command:"blockdata ~7 ~-2 ~1 {auto:1,Command:\"execute @e[type=armor_stand,tag=player] ~ ~ ~ tp @p[r=3] @e[type=armor_stand,tag=entity]\"}"},{id:commandblock_minecart,Command:"blockdata ~6 ~-2 ~1 {auto:1,Command:\"execute @e[type=armor_stand,tag=entity] ~ ~ ~ tp @e[type=!armor_stand,r=3] @e[type=armor_stand,tag=player,c=1]\"}"},{id:commandblock_minecart,Command:"blockdata ~5 ~-2 ~1 {auto:1,Command:\"execute @e[type=armor_stand,tag=entity] ~ ~ ~ kill @e[type=snowball,r=3] \"}"},{id:commandblock_minecart,Command:"blockdata ~4 ~-2 ~1 {auto:1,Command:\"execute @e[type=armor_stand,tag=player] ~ ~ ~ kill @e[type=armor_stand,tag=entity,r=3]\"}"},{id:commandblock_minecart,Command:"blockdata ~3 ~-2 ~1 {auto:1,Command:\"execute @e[type=snowball,score_switcher_min=1] ~ ~ ~ execute @e[type=!snowball,r=3] ~ ~ ~ summon armor_stand ~ ~ ~ {Tags:[\\\"entity\\\"],Marker:1,NoGravity:1,Invisible:1}\"}"},{id:commandblock_minecart,Command:"blockdata ~3 ~-2 ~ {auto:1,Command:\"execute @a[score_inhand_min=1] ~ ~ ~ execute @e[type=snowball,r=2] ~ ~ ~ scoreboard players set @p[score_inhand_min=1] inhand 0\"}"},{id:commandblock_minecart,Command:"blockdata ~4 ~-2 ~ {auto:1,Command:\"entitydata @e[type=snowball,score_switcher_min=1] {NoGravity:1}\"}"},{id:commandblock_minecart,Command:"blockdata ~5 ~-2 ~ {auto:1,Command:\"execute @a[score_inhand_min=1] ~ ~ ~ execute @e[type=snowball,r=2] ~ ~ ~ scoreboard players set @e[type=snowball] switcher 1 \"}"},{id:commandblock_minecart,Command:"blockdata ~6 ~-2 ~ {auto:1,Command:\"execute @a[score_inhand_min=1] ~ ~ ~ execute @e[type=snowball,r=2] ~ ~ ~ execute @p[c=1] ~ ~ ~ summon armor_stand ~ ~ ~ {NoGravity:1,Invisible:1,Marker:1,Tags:[\\\"player\\\"]}\"}"},{id:commandblock_minecart,Command:"blockdata ~7 ~-2 ~ {auto:1,Command:\"scoreboard players set @a inhand 1 {SelectedItem:{id:\\\"minecraft:snowball\\\",tag:{display:{Name:\\\"Switcher\\\"}}}}\"}"},{id:commandblock_minecart,Command:"blockdata ~7 ~-2 ~-1 {auto:1,Command:\"scoreboard players set @a inhand 0\"}"},{id:commandblock_minecart,Command:"blockdata ~6 ~-2 ~-1 {auto:1,Command:\"execute @e[score_craft_min=1,score_craft=1] ~ ~ ~ execute @e[score_craft_min=2,score_craft=2,r=1] ~ ~ ~ kill @e[type=Item,r=3,score_craft_min=1]\"}"},{id:commandblock_minecart,Command:"blockdata ~5 ~-2 ~-1 {auto:1,Command:\"execute @e[score_craft_min=1,score_craft=1] ~ ~ ~ execute @e[score_craft_min=2,score_craft=2,r=1] ~ ~ ~ give @p minecraft:snowball 1 0 {display:{Name:\\\"Switcher\\\",Lore:[\\\"by Creative Simon\\\"]}}\"}"},{id:commandblock_minecart,Command:"blockdata ~4 ~-2 ~-1 {auto:1,Command:\"scoreboard players set @e craft 2 {Item:{id:\\\"minecraft:diamond\\\"},OnGround:1b}\"}"},{id:commandblock_minecart,Command:"blockdata ~3 ~-2 ~-1 {auto:1,Command:\"scoreboard players set @e craft 1 {Item:{id:\\\"minecraft:ender_pearl\\\"},OnGround:1b}\"}"},{id:commandblock_minecart,Command:"setblock ~ ~ ~1 command_block 0 0 {Command:\"fill ~ ~-3 ~-1 ~ ~ ~ air\"}"},{id:commandblock_minecart,Command:"setblock ~ ~-1 ~1 redstone_block"},{id:commandblock_minecart,Command:"kill @e[type=commandblock_minecart,r=1]"}]}]}]}