Default open dialog paths

I am supporting a user that is interested in having various load/open dialogs in ProjectWise-integrated MicroStation V8 and V8i open to specific paths. For example, when using the open file dialog, she would like it to start in the folder from which she opened the current file, or the working path rather. Another one that was requested was to have the batch plot open dialog to open the working directory as well. Is there a variable or another setting that would let us define what path to default to? We are working mostly in ProjectWise SS3, but will be rolling out SS4 relatively soon.