{{Collapsible sections option}} is a standardised message indicating how the collapsible parts of a template built from {{Navbox with collapsible groups}} may be managed.

{{Collapsible sections option
| list = 
| example =  <!--(optional)-->
| default =  <!--(optional)-->
}}

list is a list of the section/group/etc names (the section[N]name  / group[N]name  / abbr[N] parameters) given in the template's code; default indicates which, if any, is to be shown expanded by default.

If the template has only one collapsible group/section,

{{Collapsible section option |name}}

where name is that group/section's name, is recommended instead. It produces a more concise version of the standard message.

The code for a {{Collapsible sections option}} for the above template could be:

{{Collapsible sections option
| list = {{hlist |overview |"two-word name" |concepts |related}}
| example = two-word name
| default = overview
}}

This code would produce:

How to manage this template's collapsible groups/sections option
  • This template includes collapsible groups/sections. When it first appears, one of these groups/sections may be set to be visible ("expanded") while the others remain hidden ("collapsed") apart from their titlebars. To achieve this, include the parameter |name where name is one of the following words that identify the groups/sections (omit any speech or quotation marks):
    • overview
    • "two-word name"
    • concepts
    • related
  • For example: {{Example |two-word name}}
  • The group/section named overview has been set to be visible when the template appears.