Wonder if there’s an easy way to dump the (default?) neighbor list. I had hacked this into an earlier LAMMPS release (circa 2006) but it seems like it’s broken against newer versions. Can do it post-processing, but it would be nice if LAMMPS did the heavy lifting for me.
I’m pretty sure that LAMMPS does not currently have such a capability. It might be possible to do with a clever input script, but probably better to re-hack your changes into the current version or do it via post-processing. If you do end up re-hacking, and want to clean it up, document it, and send it along, we might be able to work it into the standard version of LAMMPS so that you don’t have to re-hack it yet again later on.