Download Form Builder Extension
Upload and Install the Extension
Open the Joomla Extension Manager, select Upload Package File, and upload the extension file. Upload and Install POWr Form Builder.
Find POWr Form Builder Module
In the Joomla Editor, click on Extensions and select Module Manager. Select the POWr Form Builder Extension.
Add to Fixed Position
Click Position and choose a location to add the Mailing List.
Set Status to Published. Then go to Menu Assignment to select the pages where POWr Form Builder appears.
Click Test to view your plugin in the page.
To edit your Mailing List, click Test, or visit the live web page. Find your Mailing List on the page, and click the Settings Icon. This will open the POWr Editor. In the POWr Editor, click Import Existing Mailing List, find Mailing List- and click Copy.