Click on "Load Creative" to choose the creatives you want to launch ads from.
Choose creatives from various data sources from Google Drive, Dropbox, local device, and Creative hub.
Once the creatives are loaded, click on the "Smart Plus" dropdown on the top right and select the type of Smart Plus you want to launch.
Group all the creatives you want to launch the ads through a Smart+ campaign and click "Save & Close"
Once the creatives are loaded for the smart+ campaign, fill in the Ad text, Link, CTA, and other details, and choose an ad group from the smart+ campaign.
Once everything is in place, click "Launch Ads" and your ads will be launched through the smart+ campaign.