Check points by markdlib

/give @p written_book 1 0 {pages:["[\"\",{\"text\":\"Only one checkpoint is Enabled\"},{\"text\":\"Add Check point\",\"color\":\"aqua\",\"bold\":\"true\",\"clickEvent\":{\"action\":\"run_command\",\"value\":\"/execute @p ~ ~ ~ /summon ArmorStand\"}},{\"text\":\"Go to check point\",\"color\":\"dark_red\",\"bold\":\"true\",\"clickEvent\":{\"action\":\"run_command\",\"value\":\"/execute @p ~ ~ ~ /tp @p @e[type=ArmorStand]\"}},{\"text\":\"Delete\",\"color\":\"black\",\"bold\":\"true\",\"clickEvent\":{\"action\":\"run_command\",\"value\":\"/kill @e[type=ArmorStand]\"}}]"],title:CheckPoint,author:Markdlib}