Command line syntax in Perforce

Command line syntax in Perforce

One of our admins, the admin that happens to have created all of our
release streams in Perforce happens to be out of town. (We have just
started on the tool) To help lock down our content we have both of the
following items selected on our release streams: - Locked (only the stream
owner can edit stream settings) - Submitting files to the stream
restricted to stream owner
Essentially we give people access as needed. So that need came up today
and we are unable to remove the settings above on the release stream even
though we are Super Users/Admins. I am not familiar at all with the
command line syntax for Perforce commands but I would think something
along the lines of
p4 stream -f //depot/stream_name owner=newuser
I realize my syntax is way off, if anyone has advice or can point in the
direction of documentation that actually explain how to format commands
that would be great.
Thanks