in V21.0.4 the VARA.FILELIST with a BS2000 agent set, doesn't require a LOGIN object.
This is how it looks like in the VARA.FL. It must not be possible to run a preview without entering a LOGIN.
This works regardless whether the user has the privileges "FileEvents: Start without Login object specified" or "FileTransfer: Start without Login object specified" not set or set.
Release : 21.0.4
This is a known issue and resolved in 21.0.5 .