Views and Sheet Set Manager

I usually forget to use this but you can use Sheet Set Manager to take model space views from one drawing and place it into the layout of another sheet. To do this open sheet set manager and go to the Model Views tab.

Right click on the Add New Location... and add a new location. Select the folder with the drawing(s) you want to access the views in. Expand the drawing with the view that you want to add to another sheet's paper space.

Once it is expanded drag the view into paper space or right click and choose Place on Sheet. Now you can place the view on the sheet at the default scale or right click and choose the scale to add the view as. The command adds the referenced sheet to the current drawing as an xref.