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When you are in edit mode on a Confluence page, select  Insert more content from the editor toolbar and then select Other macros to view, search, and select from all of the macros available to you. Depending on the macro selected, you will be presented with another window where you can make additional specifications for the macro, as well as preview how it will display, before inserting it into your page.

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Select  Insert more content from the editor toolbar, and then select Other macros to view, search, and select a macro to insert.

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1. Select  Insert more content from the editor toolbar and select Other macros.
2. Search for and select Expand.
3. Enter a Title. (This is the text that users will click on to expand the content.) Preview the macro and select Insert.
4. Type or insert the content that you want to be expandable/collapsible into the body of the macro. 
5. Publish or Update your page. You can select the macro and select Edit at anytime to update it.

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The Title that you enter for the Expand Macro will appear as the text that users will click on to expand/collapse the additional content.

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