Opus Flex is a publication type that allows you to publish your Opus publication to play inside the Adobe Flash Player. This means you can create Opus publications that can be run on a Mac or over the web without using the Plexus Plug-in.

To create an Opus Flex publication, you must change the Type tab in the Publication Properties dialog to Opus Flex – this will disable some options in Opus Pro that cannot be used in Opus Flex publications.

When you publish an Opus Flex publication you will create a Adobe Flash SWF file.