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find out in which other data models a data model is used 
Proceed as follows:
The data model is displayed as a root from which you accessed the inverse hierarchy in the screen Inverse Hierarchy: Data Model <data_model_name>. The next level up is displayed below, that is, the data model(s) directly superior to the source data model. This means that the "higher" an object is in the hierarchy, the "lower" it will be displayed here.
To display the color key, choose Utilities ® Color key....