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
Hi my Community friends! For those who don't know me, I'm a product marketer on the Confluence Cloud team - nice to meet you! For those of you who do, you know that I've been all up in your Co...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs