Visibility of strucutes in the tree which are not directly connected
The DATEX Tool aleady contains a feature to deselect attributes of ‘DataValue’. That was because ‘DataValue’ is never traversed in the tree from top down, but only from inheriting components.
Now consider a similar structure, where some class is located in the same way as DataValue (i.e. no associations from 'the top'), but has got additional associations itself. They will never be reached within the tree, and therefore they are not displayed. Thus you cannot select or deselect them.