I would like to see an option, to create identical nests, it seems Nest Fab can already do it but it is not doing it consistently. This ability is very useful for us on waterjets as we can stack multiple sheets. I think a button or checkbox in the UI would be very beneficial, because we find our selves having to modify our created nests in order to "stack" cut them.
Thanks for your suggestion. NestFab's Ultra engine already supports this kind of repeated nesting. If you take a look at the article linked below comparing Ultra and Standard nesting you can see the options available.
Please do get in touch if you have any more questions about this topic or further suggestions for us.