Supported Flickr Sources in Walls.io:
Adding Flickr content for a specific keyword to your social wall
To add Flickr keyword sources to your social wall go to Settings > Sources in your Walls.io dashboard and select Flickr. Add the keyword (which corresponds to an image's tags) you would like to pull content for and click "ADD".
In case you have further questions, don't hesitate to contact the support team via the chat or firstname.lastname@example.org!