[Framers] Mapping Styles in FrameMaker

[gill6034 at comcast.net]

We have a new company template for FrameMaker docs. 

We have a lot of legacy guides, and we're now required to switch all of the docs to the new templates. The new templates use different paragraph and character format names. 

I need some sort of script to rename, or remap the old names to the new names, so that when I import the new template, it automatically changes the text to the new formats. 

Does anyone know of some sort of tag mapping tool or script for doing this? 

Thanks, 
Gillian