Hello,
Unfortunately, there is not a way to do a mass update like you are referring to since the names of the VI's aren't exactly the same. It is talked about a little bit in the following KB:
http://digital.ni.com/public.nsf/websearch/862567530005F09C8625675F006ADB3E?OpenDocument
I would however suggest you use the find option described in the KB as it will ensure that you find all instances of the VIs you are replacing.
Good Luck!
Regards,
Steven B.
Applications Engineering
National Instruments