That is basic database: a father can have more sons, but a son can only have one father.
If the father has several jobs for his sons to do, he would have to more specific, or wind up nothing being done…
In SketchUp, it is all about ‘the context’ were you are ‘in’ .
(Dynamic) Components are like little SketchUp files and when they are in the Model, they have a scope (one level up and one level down) If you want more ‘global’ attributes, you can make a ‘swatch’ component with some dummy geometry and apply attributes to this dummy. All components can then refer to the global swatch attributes of this dummy.