When you open a SOLIDWORKS assembly that contains envelopes, you have the
option to import the envelopes. Previously, Composer always imported assembly
envelopes.
In the Open
dialog box, select Import SOLIDWORKS assembly envelopes to import
this data. This option is available for the Open,
Merge into the current document, and Merge into a
new document options. This option is selected by default.
You can enable this functionality from the SOLIDWORKS software. Click
and select Export SOLIDWORKS assembly
envelope.
You can also batch import assembly envelopes using SOLIDWORKS Composer Sync. In the
Sync Document Properties dialog box, click Advanced
Properties. Under INPUT - IMPORT, select
Batch.IOSSWImportAssmblyEnvelopes.
See Composer Help: Input.