Just click on the scope line directly in the regarding row and choose the new scope from personas pulldown list: Please be aware of the other that there are combinations of checkboxes which are NOT possible or not allowed to set in one single ACL line. You cannot set the current to read a certain attribute on the one hand and the scale to create a certain object class on the other certain in the sam access control entry. The access for this is that only one scope specifier is allowed per ACE.
For such cases, several different ACEs are necessary..
I hope you could use the code later while building your library. TypeDescriptor is a static sealed class which makes the starting point of the API. It exposes information of the object in terms of Properties, Attributes, Events, etc.