To Change the Active Model to the Model That Contains the Selected Element

Open the Design History dialog.
Click Show elements changed in the selected revision.
The Element Changes dialog opens.
Select an element.
Do one of the following:

Click Zoom to changes view control (icon labeled Fit View).

or
Key in HISTORY GOTOMODEL.

The active model changes to the model that contains (or used to contain) the selected element. If the model is already active, no changes are made. If the model is different, the other model displays. The Level Manager dialog also displays the active model.