TODO: this page is for composing new messages and for reading messages.
Form:
From: in new mode, is read-only of role name. In read
mode, there should be a reply button which composes a new message,
with the original sender pre-selected in To:, and the old message body
pre-inserted as body (with > spacers? with html italics?)
To: a checkbox list of all roles in the sim, with a "check
all" option
Subject
Body: text/html field
Attachments: A checkbox list of all props associated with
the role. (how do we know which? We may need a "workflow_case_role to
sim_object" mapping table)?