When using the builder as a quarry or a pump, it can sometimes be useful to go visit the are being mined/pumped to diagnose issues, check progress etc.

To this end, being able to see the X and Z co-ordinate would be very helpful, perhaps updating only when a new chunk is targetted.

or maybe a chunk overlay that can be toggled to show chunk being mined.

Not so keen on that as a solution, since for a large area quarry/pump, it would still leave you searching for where the work location, besides everything being replaced with dirt or a hole serves as much purpose as a chunk overlay.