Adding several choice options on one page

Straight copy/paste from my game.

*choice Verbosity Difficulty System
  #High
    #Normal
      #Imperial
        *gosub easy_mode_defaults
        *set imperial true
        *finish
      #Metric
        *gosub easy_mode_defaults
        *set metric true
        *finish
    #Hard Mode
      #Imperial
        *set hardmode true
        *set imperial true
        *finish
      #Metric
        *set hardmode true
        *set metric true
        *finish
  #Low
    #Normal
      #Imperial
        *gosub easy_mode_defaults
        *set verbose false
        *set imperial true
        *finish
      #Metric
        *gosub easy_mode_defaults
        *set verbose false
        *set metric true
        *finish
    #Hard Mode
      #Imperial
        *set hardmode true
        *set verbose false
        *set imperial true
        *finish
      #Metric
        *set hardmode true
        *set verbose false
        *set metric true
        *finish