Creating and working with NetCDF files containing variable groups #2009

Hello,

We are working with the Fortran interface of NetCDF and PIO. We recently added the ability to read and write NetCDF-4 files with variable groups to our model (ROMS), but when we went to add groups to our PIO interface we noticed all the group related functions are missing from PIO. Is PIO capable of reading and writing files with groups? I don't see any def_grp or inq_grp functions in the code or documentation.