The default ACS for file areas in ENiGMA½ is to allow regular users 'read' and sysops 'read/write'. Read ACS includes listing and downloading while write allows for uploading. See [File Base ACS](acs.md) for more information.
To change ACS for a particular area, create an `acs` block specifying ACS for `read` and/or `write`. For example, let's allow regular users (in the "users" group) to upload to an area: