WAYPOINTS with only one command block [SEALANTERN VERSION]

/summon FallingSand ~ ~1 ~ {Block:stone,Time:1,Passengers:[{id:FallingSand,Block:redstone_block,Time:1,Passengers:[{id:FallingSand,Block:activator_rail,Time:1,Passengers:[{id:MinecartCommandBlock,Command:gamerule commandBlockOutput false},{id:MinecartCommandBlock,Command:"fill ~2 ~-3 ~-2 ~8 ~ ~2 sea_lantern 0 hollow"},{id:MinecartCommandBlock,Command:"fill ~2 ~-2 ~-2 ~8 ~-1 ~2 stained_glass 10 replace sea_lantern"},{id:MinecartCommandBlock,Command:"/scoreboard objectives add OnGround dummy"},{id:MinecartCommandBlock,Command:"/scoreboard teams add Yellow"},{id:MinecartCommandBlock,Command:"/scoreboard teams add Green"},{id:MinecartCommandBlock,Command:"/scoreboard teams add Red"},{id:MinecartCommandBlock,Command:"/scoreboard teams add Blue"},{id:MinecartCommandBlock,Command:"/scoreboard teams option Red color red"},{id:MinecartCommandBlock,Command:"/scoreboard teams option Blue color blue"},{id:MinecartCommandBlock,Command:"/scoreboard teams option Yellow color yellow"},{id:MinecartCommandBlock,Command:"/scoreboard teams option Green color green"},{id:MinecartCommandBlock,Command:setblock ~1 ~-2 ~ wall_sign 4 replace {Text2:"{\\\"text\\\":\\\"DESTROY\\\",\\\"color\\\":\\\"dark_red\\\",\\\"bold\\\":true}",Text3:"{\\\"text\\\":\\\"MACHINE\\\",\\\"color\\\":\\\"black\\\",\\\"bold\\\":true}",Text4:"{\\\"text\\\":\\\"\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"fill ~ ~-1 ~-2 ~7 ~2 ~2 air\\\"}}"}},{id:MinecartCommandBlock,Command:setblock ~1 ~-1 ~ wall_sign 4 replace {Text1:"{\\\"text\\\":\\\"\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"/tellraw @p [\\\\\\\"\\\\\\\",{\\\\\\\"text\\\\\\\":\\\\\\\"Morrle's\\\\\\\\n\\\\\\\",\\\\\\\"color\\\\\\\":\\\\\\\"gold\\\\\\\"},{\\\\\\\"text\\\\\\\":\\\\\\\"ULTIMATE WAYPOINT COMMAND!\\\\\\\",\\\\\\\"color\\\\\\\":\\\\\\\"light_purple\\\\\\\",\\\\\\\"bold\\\\\\\":true,\\\\\\\"clickEvent\\\\\\\":{\\\\\\\"action\\\\\\\":\\\\\\\"run_command\\\\\\\",\\\\\\\"value\\\\\\\":\\\\\\\"I love the ULTIMATE WAYPOINTS COMMAND!\\\\\\\"},\\\\\\\"hoverEvent\\\\\\\":{\\\\\\\"action\\\\\\\":\\\\\\\"show_text\\\\\\\",\\\\\\\"value\\\\\\\":{\\\\\\\"text\\\\\\\":\\\\\\\"\\\\\\\",\\\\\\\"extra\\\\\\\":[{\\\\\\\"text\\\\\\\":\\\\\\\"omg\\\\\\\"}]}}},{\\\\\\\"text\\\\\\\":\\\\\\\"\\\\\\\\n\\\\\\\\n\\\\\\\",\\\\\\\"color\\\\\\\":\\\\\\\"none\\\\\\\",\\\\\\\"bold\\\\\\\":false},{\\\\\\\"text\\\\\\\":\\\\\\\"https://www.youtube.com/morrlehd\\\\\\\",\\\\\\\"color\\\\\\\":\\\\\\\"red\\\\\\\",\\\\\\\"italic\\\\\\\":true,\\\\\\\"clickEvent\\\\\\\":{\\\\\\\"action\\\\\\\":\\\\\\\"open_url\\\\\\\",\\\\\\\"value\\\\\\\":\\\\\\\"https://youtube.com/morrlehd\\\\\\\"}},{\\\\\\\"text\\\\\\\":\\\\\\\"\\\\\\\\nhttps://www.twitter.com/morrlecmds\\\\\\\",\\\\\\\"color\\\\\\\":\\\\\\\"aqua\\\\\\\",\\\\\\\"italic\\\\\\\":true,\\\\\\\"clickEvent\\\\\\\":{\\\\\\\"action\\\\\\\":\\\\\\\"open_url\\\\\\\",\\\\\\\"value\\\\\\\":\\\\\\\"https://twitter.com/morrlecmds\\\\\\\"}}]\\\"}}",Text2:"{\\\"text\\\":\\\"Command by\\\",\\\"color\\\":\\\"dark_purple\\\",\\\"bold\\\":true}",Text3:"{\\\"text\\\":\\\"Morrle\\\",\\\"color\\\":\\\"light_purple\\\",\\\"bold\\\":true}"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-1 ~-1 chain_command_block 1 replace {auto:1,Command:"aponirt ale morrlehade uf utup"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-1 ~-1 chain_command_block 4 replace {auto:1,Command:"LEER"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-1 ~-1 chain_command_block 4 replace {auto:1,Command:"LEER"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-1 ~-1 chain_command_block 4 replace {auto:1,Command:"LEER"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-1 ~-1 chain_command_block 4 replace {auto:1,Command:"LEER"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-1 ~ chain_command_block 2 replace {auto:1,Command:"LEER"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-1 ~ chain_command_block 5 replace {auto:1,Command:"LEER"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-1 ~ chain_command_block 5 replace {auto:1,Command:"LEER"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-1 ~ chain_command_block 5 replace {auto:1,Command:"LEER"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-1 ~ chain_command_block 5 replace {auto:1,Command:"execute @e[tag=Waypoint] ~ ~ ~ execute @e[tag=yellow,r=1,score_OnGround_min=1] ~ ~ ~ /kill @e[r=1,type=Item,tag=yellow]"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-1 ~1 chain_command_block 2 replace {auto:1,Command:"execute @e[tag=Waypoint] ~ ~ ~ execute @e[tag=yellow,r=1,score_OnGround_min=1] ~ ~ ~ /scoreboard teams join Yellow @e[r=1,tag=Waypoint]"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-1 ~1 chain_command_block 4 replace {auto:1,Command:"execute @e[tag=Waypoint] ~ ~ ~ execute @e[tag=blue,r=1,score_OnGround_min=1] ~ ~ ~ /kill @e[r=1,type=Item,tag=blue]"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-1 ~1 chain_command_block 4 replace {auto:1,Command:"execute @e[tag=Waypoint] ~ ~ ~ execute @e[tag=blue,r=1,score_OnGround_min=1] ~ ~ ~ /scoreboard teams join Blue @e[r=1,tag=Waypoint]"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-1 ~1 chain_command_block 4 replace {auto:1,Command:"execute @e[tag=Waypoint] ~ ~ ~ execute @e[tag=green,r=1,score_OnGround_min=1] ~ ~ ~ /kill @e[r=1,type=Item,tag=green]"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-1 ~1 chain_command_block 4 replace {auto:1,Command:"execute @e[tag=Waypoint] ~ ~ ~ execute @e[tag=green,r=1,score_OnGround_min=1] ~ ~ ~ /scoreboard teams join Green @e[r=1,tag=Waypoint]"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~1 chain_command_block 1 replace {auto:1,Command:"execute @e[tag=Waypoint] ~ ~ ~ execute @e[tag=red,r=1,score_OnGround_min=1] ~ ~ ~ /kill @e[r=1,type=Item,tag=red]"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"execute @e[tag=Waypoint] ~ ~ ~ execute @e[tag=red,r=1,score_OnGround_min=1] ~ ~ ~ /scoreboard teams join Red @e[r=1,tag=Waypoint]"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"execute @e[tag=book,score_OnGround_min=1] ~ ~ ~ execute @e[tag=spawn_egg,r=1,score_OnGround_min=1] ~ ~ ~ /kill @e[r=1,type=Item]"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"execute @e[tag=book,score_OnGround_min=1] ~ ~ ~ execute @e[tag=spawn_egg,r=1,score_OnGround_min=1] ~ ~ ~ /give @p written_book 1 0 {pages:[\\\"[\\\\\\\"\\\\\\\",{text:\\\\\\\"Waypoint Control System\\\\\\\",bold:true,underlined:true,color:dark_purple},{text:\\\\\\\"\\\\n\\\\n\\\\\\\",color:reset},{text:\\\\\\\"-Waypoint Beam\\\\\\\",clickEvent:{action:run_command,value:\\\\\\\"/execute @e[tag=Waypoint] ~ ~ ~ /setblock ~ ~ ~ minecraft:end_gateway\\\\\\\"}},{text:\\\\\\\"\\\\n\\\\\\\"},{text:\\\\\\\"-Stop Waypoint Beam\\\\\\\",clickEvent:{action:run_command,value:\\\\\\\"/execute @e[tag=Waypoint] ~ ~ ~ /setblock ~ ~ ~ air\\\\\\\"}},{text:\\\\\\\"\\\\n\\\\n\\\\\\\"},{text:\\\\\\\"-Teleport to nearest Waypoint\\\\\\\",clickEvent:{action:run_command,value:\\\\\\\"/tp @p @e[tag=Waypoint,c=1]\\\\\\\"}},{text:\\\\\\\"\\\\n\\\\\\\"},{text:\\\\\\\"-Teleport to furthest Waypoint\\\\\\\",clickEvent:{action:run_command,value:\\\\\\\"/tp @p @e[tag=Waypoint,c=-1]\\\\\\\"}},{text:\\\\\\\"\\\\n\\\\n\\\\\\\"},{text:\\\\\\\"-Kill nearest Waypoint\\\\\\\",color:dark_red,clickEvent:{action:run_command,value:\\\\\\\"/kill @e[tag=Waypoint,c=1]\\\\\\\"}},{text:\\\\\\\"\\\\n\\\\\\\",color:reset},{text:\\\\\\\"-Kill all Waypoints\\\\\\\",color:dark_red,clickEvent:{action:run_command,value:\\\\\\\"/kill @e[tag=Waypoint]\\\\\\\"}}]\\\"],title:\\\"Waypoint Control System\\\",author:Morrle}"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"execute @e[tag=end_crystal,score_OnGround_min=1] ~ ~ ~ execute @e[tag=end_rod,r=1,score_OnGround_min=1] ~ ~ ~ /kill @e[r=1,type=Item,tag=!WaypointItem]"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~ chain_command_block 3 replace {auto:1,Command:"execute @e[tag=end_crystal,score_OnGround_min=1] ~ ~ ~ execute @e[tag=end_rod,r=1,score_OnGround_min=1] ~ ~ ~ /summon Item ~ ~1 ~ {Tags:[\\\"WaypointItem\\\"],Item:{id:spawn_egg,Damage:69,Count:1,tag:{HideFlags:1,display:{Name:\\\"Waypoint\\\"},ench:[{id:51,lvl:1}],EntityTag:{id:\\\"Shulker\\\",Tags:[\\\"Waypoint\\\"],AttachFace:0,NoAI:1,Silent:1,Glowing:1b}}}}"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"scoreboard players tag @e add yellow {Item:{id:minecraft:dye,Damage:11s}}"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"scoreboard players tag @e add blue {Item:{id:minecraft:dye,Damage:4s}}"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"scoreboard players tag @e add green {Item:{id:minecraft:dye,Damage:2s}}"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"scoreboard players tag @e add red {Item:{id:minecraft:dye,Damage:1s}}"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~-1 chain_command_block 3 replace {auto:1,Command:"scoreboard players tag @e add spawn_egg {Item:{id:minecraft:spawn_egg}}"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~-1 chain_command_block 5 replace {auto:1,Command:"scoreboard players tag @e add book {Item:{id:minecraft:book}}"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~-1 chain_command_block 5 replace {auto:1,Command:"scoreboard players tag @e add end_rod {Item:{id:minecraft:end_rod}}"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~-1 chain_command_block 5 replace {auto:1,Command:"scoreboard players tag @e add end_crystal {Item:{id:minecraft:end_crystal}}"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~-1 repeating_command_block 5 replace {auto:1,Command:"scoreboard players set @e[type=Item] OnGround 1 {OnGround:1b}"}},{id:MinecartCommandBlock,Command:setblock ~ ~ ~1 command_block 0 replace {Command:fill ~ ~-3 ~-1 ~ ~ ~ air}},{id:MinecartCommandBlock,Command:setblock ~ ~-1 ~1 redstone_block},{id:MinecartCommandBlock,Command:kill @e[type=MinecartCommandBlock,r=1]}]}]}]}