You
		can use the Envelope Publisher
		 tool to include components from a
		top-level assembly as envelopes in a subassembly.
 tool to include components from a
		top-level assembly as envelopes in a subassembly.
		 You can work in the subassembly using the published envelopes as
			reference components in isolation from the top-level assembly. The envelope components
			inherit changes from the top-level assembly. 
		Multiple subassemblies can have the same envelope. Subassemblies can
			contain only one group of envelopes published by Envelope
				Publisher
			 .
. 
		When you select a subassembly as a destination for the envelope, an
			external reference is created to the parent assembly. The Published Envelopes
			 folder displays external reference
			symbols that indicate the reference state of the envelope.
 folder displays external reference
			symbols that indicate the reference state of the envelope.
		Envelope Publisher
			 is available when an assembly
			contains subassemblies. The tool is not available in Large Design Review mode.
 is available when an assembly
			contains subassemblies. The tool is not available in Large Design Review mode.