Search a class datagroup for the value and find the name

Thanks again Aaron, yes as performance is more important to us, i've already found/thought of relatively easy ways to maintain the two files and import them [ actually through some of your previous replies to other posts :-) ]. Plus it's even better if you say the internal and external classes perform the same, as I could get our software teams to write a separate API which could automatically maintain and upload and load the files. thanks again - don't suppose you've got some thoughts on my new post regarding the node command ;-)