It is highly recommended to organize the model. Follow the steps provided below to create the hierarchy org > openbluelab > test:

1. In the navigator view, select the obldi file.

2. In the outline view, select the root package.

3. Enter the name org in the properties view. All package must have a name because its name will be the prefix of model in the target platform.

4. Choose Create child > Package in the outline view.

5. Enter the name openbluelab in the properties view.

6. Repeat 4. and 5. to create the package test

7. On the contextual menu of the package test, select Add diagram > Class diagram. The creation of this diagram allow to place model's element on the package test directly.