Template:Collapsible sections option

How to manage this template's collapsible groups option

• This template uses {{Navbox with collapsible groups}}. To show a particular section of the template while leaving the other sections collapsed, use: {{[Template name] |Section}} where Section is one of the following:
  {{{list}}}.
  (Omit any speech or quote marks.)
  [optional:]  For example: {{[Template name] |{{{example}}}}}