Purge items from a dynamic block

[woodman78]

How do I purge linetypes from a dynamic block? I have hundreds of blocks that make up our legend items and I want to remove unwanted items to reduce the sizes of them.

Thanks

[SLW210]

Purge is not a delete tool, it purges UNUSED block definitions, dimension styles, layers, linetypes, text styles, zero-length geometry and empty text objects.

ALL references to a linetype must be erased before you can purge the linetype.