From http://www.w3schools.com (Copyright Refsnes Data)

XSL-FO multi-toggle Object

Definition and Usage

The <fo:multi-toggle> object is used to create an area that when activated (e.g. clicked), switches from one <fo:multi-case> to another.

The "switch-to" property typically matches the "case-name" property of the <fo:multi-case> to switch to.

An <fo:multi-toggle> object must be a descendant of an <fo:multi-case> object.

Syntax

<fo:multi-toggle>
  <!--
	Contents:(#PCDATA|bidi-override|character|
	external-graphic|instream-foreign-object|
	inline|inline-container|leader|page-number|
	page-number-citation|basic-link|multi-toggle|
	block|block-container|table-and-caption|
	table|list-block)*
  -->
</fo:multi-toggle>

Properties

Property
id
role
source-document
switch-to