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CAD tip CAD tip # 3722:

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Automatic Purge for nested blocks or other symbols.

A - answer If you have nested blocks or other symbols depending on other symbols in your drawing, you can purge their unused versions with a single PURGE command.
In the dialog version of the PURGE command check the 'Purge nested items' option. In the commandline version (-PURGE), purging of nested items depends on the 'Nested' value in Registry (key HKEY_CURRENT_USER\Software\Autodesk\AutoCAD\R16.1\ACAD-301:401\Profiles\<< Unnamed profile>>\Dialogs\PurgeDialog - product codes may differ). This value can be also set (setting kept between sessions) easily using the Purge dialog - check/uncheck the setting and close the dialog with the Close button.
100% *  CAD 
9.4.2004    25235×  

See also:
Tip 12933:Purging small objects from a DWG drawing - PurgeSmall.
Tip 12592:How to automatically purge old backup files .BAK?
Tip 12198:How to remove duplicate points and COGO points from a DWG?
Tip 12191:How to preset options in the Purge dialog?
Tip 11439:Replace block instances (incl. dynamic) with another block.

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