/tellraw @p {"text":"Select your gamemode: ", "extra": [{"text":"Creative", "color":"yellow", "clickEvent":{"action":"run_command", "value":"/gamemode 1"}}, {"text":" | "}, {"text":"Surival", "color":"red", "clickEvent":{"action":"run_command", "value":"/gamemode 0"}}, {"text":" | "}, {"text":"Adventure", "color":"green", "clickEvent":{"action":"run_command", "value":"/gamemode 2"}}]}

/tellraw @p {"text":"Select your difficulty: ", "extra": [{"text":"Peaceful", "color":"aqua", "clickEvent":{"action":"run_command", "value":"/difficulty 0"}}, {"text":" | "}, {"text":"Easy", "color":"yellow", "clickEvent":{"action":"run_command", "value":"/difficulty 1"}}, {"text":" | "}, {"text":"Normal", "color":"gold", "clickEvent":{"action":"run_command", "value":"/difficulty 2"}}, {"text":" | "}, {"text":"Hard", "color":"red", "clickEvent":{"action":"run_command", "value":"/difficulty 3"}}]}