replacement blocks

[maurot50]

Bye to all,
I need a suggestion: having a design that contains a repeated block n times having to replace it with another block there is a command that does this operation? use autocad lt 2011.
thanks for any suggestions.
Mature

ps: in "blockreplace" command does not work

 

[tir]

you can replace an existing block definition with an external file by typing the following to the request message type block name:
name block=name file