In GRASS only the owner of the mapset can modify the data inside.
This is `coded` in the funcion G__mapset_permissions (mapset)
in the source file `src/libes/gis/mapset_msc.c'
I need to enable all the users of the same group to modify
this mapset (of course at different moments).
IS IT POSSIBLE?
HOW CAN I DO THIS?
Thanks a lot