There still is no server support for auto-refreshing feeds, but you can make a cron job. The command line to refresh the "Feed" folder for
user@example.com is zmmailbox -z -m
user@example.com syncFolder /Feed. RSS and iCal are the same.
For user-specific provisioned calendars, we sync all users (enumerate with zmprov gaa example.com) hourly; for more stable holiday and academic schedule calendars, we sync daily into an account that shares several calendars with all users.
--view is self-correcting:
mbox
foo@example.com> cf --view bogus /that
ERROR: zclient.CLIENT_ERROR (invalid view: bogus, valid values: [appointment, contact, conversation, document, message, wiki, task, voice])
--flags, I'm not sure. For calendars, --flags '#' means the calendar will be selected, i.e., show/hide checkbox checked.