Are PLECS library components treated as black boxes?

Problem description: 

I need to be able to see how a component is implemented and possibly modify it for a specific application. If the component is simply a black box, I have no way to verify the implementation behind it.


Most PLECS components are implemented as open to the user, even complex models such as machines. These components are easily inspected and modified for custom modeling by the user. To inspect the implementation of a model, right-click on the component and select "Look under mask".