What do you mean with add-on VBScript ? I know we can use scripts but add-on sound like plugins ...
Displayed information right on netscan grid is preferred because you're on a better position to make decisions and take action... better than running something else on another window. Don't misunderstand me I really appreciated that we can use scripts, third party tools, variables, filtering, bookmarking, we are dealing with a huge app here, a lot of people (admins) ignore the existence of the scanner. Netscan already have the ability to query the active directory to import computers, if it can query those why not more info?