Ways of modifying "auto-populated" PropertyField after CreateInspectorGUI()

For a custom inspector, I'm trying to figure out the best/simplest way to modify the elements right after

CreateInspectorGUI()

. The reason(s) for this is that

CreateInspectorGUI()

controls the bindings of the property fields I have set in uxml file. So for example, it is convenient that I can assign the

bindingPath 

of a property field to a serializeable class or struct, as the binding system will automatically populate it with the contained values. But if I wanted one of the contained value's enabled/disabled state to be controlled by a toggle/bool value, I can't do this in

CreateInspectorGUI()

as the property fields haven't been assigned yet (AFAICT the PropertyFields are created when it returns). It would be convenient if I could modify it by overriding a method such as

AfterCreateInspectorGUI()

, or something like that. Is there a proper way to do that?

Right now I am adding all contained values as PropertyFields by hand within

CreateInspectorGUI()

, so I can set the state as they are added to the root; but this is not ideal as I may have, say, 15 fields in the class/struct and only need set the state of 1.