Layout > Using Sublayouts > To Create a Sublayout
  
To Create a Sublayout
1. Click Organize. The Organize tab opens.
2. Perform one of the following operations:
To create a standalone layout file and insert it as a sublayout in the active layout, click New Sublayout > Sublayout.
To create a sublayout and embed it in the active layout, click New Sublayout > Embedded Sublayout.
3. The New Sublayout dialog box opens. Accept the default name or type a new name and click OK. A sublayout is created and appears as a new branch in the Model Tree with a default set of tags.
 
* When you create a standalone layout file, the sublayout appears in the Model Tree with the CEM file extension.