Once you've connected the elements of your Master Design template to a Data Feed, you'll be able to use that data feed to generate Automated Variations..
How to Generate Automated Variations
To generate Automated Variations, you should first return to the Flexitive folder UI. Then for the Master Design template, click the 'More' option in the design module.
After opening the 'More' toggle, you'll be able to access the 'Generate' option. Clicking Generate will automatically create designs using your initial design as a template for the new designs.
Designs created by Automated Variations are completely self contained, and can be edited, previewed and exported like any other Flexitive design.