You can start model generation for selected objects and models using the Navigation bar in the Explorer, and in the search.
You can select the objects and models you want to use in the navigation tree and in the details view on the corresponding tabs. In addition, you can select objects directly in an open model and generate a new model from them.
Procedure
Select the objects and models you want to use in the generated model.
Activate the Contents tab bar and click Generate model.
The Model Generation Wizard opens and you can specify your settings for model generation.