Create a Rule Set in a Layout
When you add a dynamic form or table to a page, you first select a data source (usually through a Quick Start), then either create a new rule set, or select one that already exists the Layout for the data source.
You can create a rule set in a Layout at any time, even if you don't have a dynamic component ready to use it yet. You might want to do this in preparation for dynamic components that will be added to your extension—or someone else's—later.
To create a rule set in a Layout:
After creating a rule set, the next step is to define which fields should be displayed in the component, and the conditions governing when they should be displayed.