Create custom packages to group metamodel types together and export them as a
single package.
You need to create a new package then assign metamodel types to the new package.
Procedure
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Go to .
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Click START EDITING.
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Click the menu next to the Package Filter list.
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Select New Package.
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Enter a unique package name and click OK.
This new package is empty. You can create new custom metamodel types or reuse
existing ones from other packages.
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To reuse metamodel types from another package, select another package from the
Package Filter list.
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Right-click one or more metamodel types.
Note: You have to move the items contained in each selected metamodel type to the
same package, such as the attributes and relationships directly added in their
properties or inherited from their parent object.
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Click Change package then select the custom package.
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Go back to the custom package.
You now see the assigned metamodel types.
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Save your changes.