Replace Texture Tool by vektorboson
The tool replacetex is a command-line-application with which you can change the paths of all textures of an addon
. So "addon\misc.paa" becomes, with help of this tool, for example "my_addon\misc.paa", while i.e. "data\foo.paa" doesn't change.
This tool has no graphical surface and looks somehow putting off, but it is worth it.
You can find a similar tool here
Attention, this tool is a BETA VERSION! Do not make mapfact.net, vektorboson nor BIS/CM responsible for any dammages. Make a back up of the modell before using!