New Feature: addfiles.js

This is a request for a new feature for addfiles.js. In using in a batch file to update one file if you use the -update option, it updates everything in the particular area. is there a way we could add a feature just to update just one file in that area. Like below:

jsexec addfiles -lib=newuser -update -filename=filelist.zip

Thanks C.G. Learn (Valhalla)