Is there any way to make one storage accessible to a multiple users at one time?
Right now when you set STORAGE_DIR variable in config_local.py, pgAdmin will create a separate directory for every single user in it (e.g. if STORAGE_DIR=/somedir, then user’s storage root will be at /somedir/someuser/). The idea is to allow users access some common directory, or to set one directory as several user’s storage root.
pgAdmin doesn't have any specific support for this at the moment (please feel free to log a feature request at https://redmine.postgresql.org/projects/pgadmin4/issues/new), however you should be able to fake it by creating a symlink in each user's storage directory that points to a common location.