The Open Target tool in the Mini toolbar can be used to open a drawing or sheet model from a callout in a 3D design model. The drop-down next to the Open Target icon lists the models in which the saved view is placed.

The model selected in the drop-down list of this tool is used by other tools in the Mini toolbar. For example, the Display Sheet Annotations tool displays the annotations displayed in the model selected in this drop-down list, and the Apply View tool uses the model selected in this drop-down list to get the view attributes settings, level settings, and annotations.