Using a submodel for multiple views on a model, perhaps at different scales

Once part of a model is made into a submodel, you can open a separate window for it (by double-clicking on its boundary with the pointer). This window can be kept on the screen while you scroll the main model diagram to some other part of the model. Also, you can change the zoom factor for each main model window or submodel window separately, enabling you to see part of the model in fine detail while maintaining an overview of the whole model at a coarser scale.