Scenario bundles: selecting subclass from drop-down does not select parent class

[han-f]

Description of the issue

When I select a subclass from a drop-down the parent class is not automatically selected, too. I think it would be a nice feature if this could happen.

Ideas of solution

Describe possible ideas for solution and evaluate advantages and disadvantages.

Workflow checklist

• [ ] I am aware of the workflow in CONTRIBUTING.md