-- Add choice buttons
  local choices = self.message.choices
  self.choice_buttons = {}
  local orig_y = 175
  if choices then
    for i = 1, #choices do
      local y = orig_y + ((i-1) + (3-#choices)) * 48
      local choice = choices[i].choice
      local additionalInfo = choices[i].additionalInfo
      -- NB: both nil and true result in enabled; also handle old "disabled" choice
      local enabled = (choices[i].enabled ~= false) and (choice ~= "disabled")
      local --[[persistable:fax_choice_button]] function callback()
        self:choice(choice,additionalInfo)
      end
      self.choice_buttons[i] = self:addPanel(17, 492, y):makeButton(0, 0, 43, 43, 18, callback)
        :setDisabledSprite(19):enable(enabled)
    end
  end