\label{Coauthor}
A \textbf{co-author}\index{co-author} is someone who has permission to
create resources in a users construction space.

Sometimes, it is a good idea to create one ``virtual'' author\index{virtual
author}\index{author, virtual}, for example creating a user with the
username \texttt{physics123}, and make everyone who will be creating
resources for physics123 be co-authors to this virtual user. This
allows collaborators to work with each other.

To create a co-author, you must log into LON-CAPA as the author, pick
the role of author, click \textbf{CUSR} on the remote control, type in
the username for the person you want to be a co-author, fill in the
data (if the person is not in the system yet), and select the role
co-author for the user, and finally submit the data. The other person
will have the role of co-author when they log in and can do everything
that the author can do in the construction space.