Is it this add-on? https://marketplace.atlassian.com/plugins/com.mxgraph.confluence.plugins.diagramly If so, I would recommend you add the addon-com.mxgraph.confluence.plugins.diagramly label to your question.
Sorry for the late reply, without the correct tag we don't get a notification of the question.
Click on "More Shapes" bottom left, in the dialog that appears tick "EIP" and apply.
Screen Shot 2015-02-27 at 11.19.50.png
Two vulnerabilities have been published for Confluence Server and Data Center recently: March 20, 2019 CVE-2019-3395 / CVE-2019-3396 April 17, 2019 CVE-2019-3398 The goal of this article is...
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