ClickInsert
menu External References.At the Command prompt, enter
externalreferences.
In the External References palette, select the reference name
that you want to bind.
Right-click, and click Bind.
In the Bind Xrefs dialog box, select one of the following
options:
Bind converts the objects in the xref into a block reference.
Named object definitions are added to the current drawing with a
prefix of blockname$n$.
Insert also converts the objects in the xref into a block
reference. Named object definitions are merged into the current
drawing without adding prefixes.