[Trac] how to create a list of users

[Emmanuel Blot]

> how can I define a list of users?
> This list of users I need to assign the tickets.

There are two options for Trac about users & tickets:
 * either the 'assign' field allows free-editing, so you can put
whichever name you want (existing and non-existing ones)
 * either the 'assign' field is a drop-down list that shows the list
of ALL the users that have already performed some change in the
project/environment. Have a look at the restrict_owner option
documentation on the Trac web site to read about these "changes".

Cheers,
Manu