...
For additional information on using this app, please refer to the User guide.
Installing the app
Numbered Headings can be installed directly from the Universal Plugin Manager (UPM) within Confluence. Installation instructions may vary slightly per Confluence version.
Log in as an administrator.
Click Settings (cog icon at the top-right of the page) > Manage apps and search for Numbered Headings. Or, simply click the cog icon and click Numbered Headings under NUMBERED HEADINGS section in the menu on the left.
Click Free trial or Buy now.
Alternatively, you can download the app from the Atlassian Marketplace directly and install it manually.
...
Numbered Headings can be removed completely from the Confluence instance or be disabled temporarily.
Log in as an administrator.
Click Settings (cog icon at the top-right of the page) > Manage apps and search for Numbered Headings. Or, simply click the cog icon and click Numbered Headings under NUMBERED HEADINGS section in the menu on the left.
Click Uninstall or Disable as required.