It seams so obvious so maybe there IS a way but…when you reset, turn off, or just close MAX and then reopen it, and your file, and you want to render just a region, you have to guess because VFB is empty. It would be so useful (and simple to implement I think) a load button to just load an image on which you were working on.
thanks
Currently it can be done though the VFB history - if you enable it, just place the previous .vrimg file the history directly and load it from there.
Best regards,
Vlado