Composite components
Composite components are components that you create by assembling some
number of components within a Flexbox and then defining the collection as a composite
component. These composite components enable you to save a set of components that you want to
be able to reuse as a unit; for example, a feedback form, a set of input fields, or even a
major part of your app.
Composite components are saved to your your list of composite components in the workspace. They display on the Composite tab of the Components panel.
You can also export composite components to files and import composite components from files. They can then be included in the App Builder Repository for reuse.