Installing Boomerang is a breeze.
By this point, you should have received an email with a download link. When you click on this link, you will receive the very latest version of Boomerang, in ZIP format.
2. From your WordPress dashboard, choose Plugins > Add New.
3. Click Upload Plugin at the top of the page.
4. Click Choose File, locate the plugin .zip file, then click Install Now.
5. After the installation is complete, click Activate Plugin.