6/07/2007

Attach vs. Overlay

When dealing with multiple levels of xrefs (nested xrefs), you can control whether a file appears in all levels or just one. If you ATTACH Drawing A to Drawing B, any file that references Drawing B will also see Drawing A. If you OVERLAY Drawing A on Drawing B, however, files that reference Drawing B will not see Drawing A. How you use these two options will vary depending on the end effect that you want, but it's important to know the difference between the two methods.

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