Is it possible to scale the size of a robot made as an instance of the WheeledRobot class?

I instantiated a robot using the WheeledRobot class, but there is no option to set the scaling of the model.

How can we do the scaling when using the WheeledRobot class?

Thanks for your help.

If someone encounters the same issue/need, I made it by editing the superclass.

I wonder why such a feature is hidden from the interface despite being available in the parent class.