Deactivate Inheritance of Properties

Not always is the inheritance useful. There are two cases of how you would want to deactivate the inheritance:

1. Complete detachment of the specification from the parent specification: None of the properties should be inherited as the specification describes a complete different element, that is just subordinated to the parent specification to show the thematic affiliation.
2. Detachment of single inherited properties: Only some of the inherited properties should be removed while the inheritance of other properties remains unaffected. This way e.g. general properties that are places on an higher hierarchy level can be removed from single specifications where they are not useful without having to renounce the use of inheritance.