For the managed package runtime, you can use the Cards Designer to interactively create and configure layouts, zones, cards, flyouts, and card states.
This information is for Omnistudio for Managed Packages. For Omnistudio on standard runtime, see Omnistudio Help.
The optional Preview tab displays changes as soon as you make them:
For information on how to use the Cards Designer to create and configure Card layouts, see Creating a New Card Layout using Cards Designer.