You may export the metamodel types you define in one repository and import them into another. As we export by package, you must have the types you want collected into a single package.
The Standard package cannot be exported.
If the package shows as Default then it is NOT in a package and must be placed in one to export.
Steps
1. Sign in as a user with at least the Application Administrator capability global role assignment.
2. Go to MANAGE > Metamodel in the banner.
3. Select a package (non system) in the PACKAGE FILTER pick list.
4. Click the More Actions icon and select Export current package.
Example
Sign in as Administrator and go to MANAGE > Metamodel. Select the Business Policy and Rule Management package. Then click the More Actions icon and select Export current package.
It is downloaded as an XML file.