[TxMt] Better Find/Replace

[Nicholas Cole]

I need to do a lot of horrible search and replaces in a very large
project (actually replacing a lot of bibtex labels).  I want to do a
search in project, and would like to limit it to particular files
(*.tex ones).  The "Find in Project" command is replaced for searching
with excellent plugins like "Grep in project".  Does anything similar
exist for search/replace?

Best,

Nicholas