To apply one of your custom design to batch mode:
Go to Your Content tab
Favorite your project, it will be moved to favorite
In Favorites, tap your newly created template
Apply to multiple images
Select the images for the batch
Export all images
Learn how to use Batch Mode to apply a custom design to many images at once
To apply one of your custom design to batch mode:
Go to Your Content tab
Favorite your project, it will be moved to favorite
In Favorites, tap your newly created template
Apply to multiple images
Select the images for the batch
Export all images