Layout > Using Sublayouts > To Embed or Extract a Sublayout
  
To Embed or Extract a Sublayout
Before performing this procedure, make sure to activate the upper-level layout.
1. In the Model Tree, select the sublayout to embed or to extract.
2. Perform one of the following operations:
To embed a sublayout, click Organize > Embed. The sublayout keeps its hierarchy in the Model Tree, but it is no longer an independent layout file.
To extract a sublayout, click Organize > Extract. The sublayout keeps its hierarchy in the Model Tree. Its main branch appears with the CEM file extension indicting that it is a separate layout file.