Template:Collapsible sections option/doc

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

Syntax
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;   indicates which, if any, is to be shown expanded by default.

If the template has only one collapsible group/section,

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

Example
The code for a for the above template could be:

This code would produce: