Hello again, I want to use a Magritte Seaside component with a different set of actions / buttons than the default ( save / cancel ) Looking through the list, I found that the required thing to do is to program the extensions to MAContainerComponent, and then build the component with a call like this: (self model descriptionRequiredFields asComponentOn: self model) addValidatedForm: #( register cancel ) What I am not sure about, is what is the proper way to do this extensions. Should I subclass MAContainer and override #componentClass to make it return a subclass of MAContainerComponent (of my application) that implements the actions I need (like register in the example above) ? Has anyone got an example of this sort of action overriding in Magritte forms? Thanks r.