Add a tool (w/ gui preferably) to get the attribute values for a set of selected features and use them in an interactive definition query dialog box which would allow the user to select which attributes to use for the querry and how to use them. If this is set up in gui it could also be used to visually analyse for trends within the selected data.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.