Linked models serve as proxy objects that can be used in a very convenient way to add detail to your projects without making the model too heavy. Components within a model can be saved externally as individual *.skp model files and be imported into Enscape as a Linked Model. The linked model serves as a Proxy Object in SketchUp and it will show up as a wireframe box placeholder. It is quite similar to how Enscape Assets function. You can see the Linked Model as a real-time render in the Enscape Viewport. 

To import proxy objects, click on Objects in the Enscape Toolbar. Select the Linked Model option. You will be asked to locate the *.skp Model. Once selected, it will show up as a proxy object in your SketchUp window and as a render in your Enscape Viewport. 

You can create proxy objects using SketchUp components as well. You can either create your own components or use existing ones. Export components by right clicking and selecting save as external model for Enscape. A proxy will replace the component by saving it as an external *.skp File. 

Even though Enscape Assets are by default components in SketchUp, you will not be able to export these components as proxy objects. To use them as proxy objects, you will have to first explode the Enscape Asset component in SketchUp, reselect it, and create a new component out of it. 

Once recreated as a component, you can export the asset by right clicking and selecting save as external model for Enscape. A proxy will replace the component by saving it as an external *.skp File.

Updates to a Linked Model can simply be made in the external *.skp file. Open the file in Sketchup, update the model and save the changes. Once saved, changes will automatically update in your Linked Model file. 

In a case where the original location of a linked model has been changed, the model can be re-linked by right clicking the placeholder inside your project and selecting Re-Link maps and proxies. You will then be able to choose the new folder where the linked model is located.