Managing Changes and Updates to SketchUp Files
LayOut can help you edit view and style settings of SketchUp viewports without switching back to SketchUp. If you need to make more extensive edits to a SketchUp model, you must open the model file in SketchUp.
Here's a quick look at the ways LayOut helps you manage changes and updates to SketchUp models:
When you open a model in SketchUp from LayOut, LayOut updates your document to reflect any changes you save to the SketchUp model file.
In LayOut, the References section in Document Setup lists all the SketchUp models inserted into your document and when that model was last updated. You can then see at a glance whether a model is out of date and manage all instances of each model that appear in the LayOut document.
You can change the associated SketchUp model on a per viewport basis.
You can control the visibility of SketchUp Tags within LayOut.
Opening SketchUp from LayOut
To open a model file in SketchUp from LayOut, follow these steps:
In LayOut, context-click the SketchUp model entity and select Open with SketchUp from the menu that appears.
After your model file opens in SketchUp, make your changes to the model file and select File > Save . When you switch back to LayOut, the SketchUp model entity reflects the changes you made to your SketchUp file.
Managing References in Document Setup
In LayOut, inserted images and imported files become references. If you or someone else makes changes to a file, you'll need to update the reference in LayOut before your document reflects any changes. You can do this in the References section of Document Setup.
To check and update model references in LayOut, follow these steps:
Select File > Document Setup in MacOS, or Window > Document Setup in Windows, to open the Document Setup dialog box.
Select References in the sidebar on the left. If a model reference is out of date, its name is highlighted.
Select any outdated references click the Update.
When you're done with the Document Setup dialog box, click Close.

The References pane contains the following options to help manage all of your references:
Check References When Loading This Document -When selected, notifies you when inserted files have been updated outside of LayOut.
Relink - If you move a file to a new location or rename the file, Relink helps you add the new location for that reference.
Unlink - If you don't want your LayOut document to reflect changes to the SketchUp or image file, you can break the link by selecting the reference and clicking Unlink.
Edit - To make changes to a referenced file in its native application, select it and click Edit.
Purge - To clear out all the references that no longer appear in your document, click Purge. This action also removes any unused In Model styles.
Changing the Model Associated with a Viewport
You can also change the SketchUp model associated with a viewport by following these steps:
Select the viewport.
In the SketchUp model dialog, select Link.
Navigate to the location of the new file, select the file, then choose Open.
Controlling the Visibility of SketchUp Tags
You have full control of the visibility state of your SketchUp model Tags within LayOut. To alter Tag visibility:
Select a SketchUp model viewport.
From the SketchUp Model dialog, expand Tags.
Click the eyeball to change the visibility state of a tag or tag folder.
Use Ctrl (Microsoft Windows) or Cmd (Mac) to select multiple individual tags, or Shift to highlight a group of tags.
Tip: Creating Tag Folders in SketchUp can help you manage your tags in LayOut. Any of those folders are visible in LayOut, allowing you to hide or show all tags in a folder all at the same time. You can still hide only individual tags by expanding the folder.

For more help when working with SketchUp tags in LayOut, take a look at Labeling Items in Your Document or Working with SketchUp Dashes in Imported Models .