As Guy suggests in his post, you hit the PARM button and then poke around.

But to be more specific, take a deep breath and ... -

* Choose the Course Coordinator role for the course of interest.

* When you click on PARM, you will be greeted with a variety of options.

From the start you need to realize that flexibility has been the key in
design. You have a number of different parameters you can set (due date,
available points, client IP/name access control, ...). These can be
set for the whole course, a given map (a page or sequence), or a given
resource/problem. They can also be set for a full class, a single section,
or a single student. Get the picture? We're working on a simplified 
presentation that hides some of these options.

Given this overview of possibilities, the boxes and menus at the top should
make more sense:

- You can select a specific section (fill in box with number).
- You can select a specific user by username or ID.
- You can decide how the monstrous list of parameters you're about to conjur
    up should be sorted.
- You can select with which map you want to work (Assignments typically
    consist of problems grouped in a common page or sequence, perhaps with
    other content material interspersed).
- If you want to limit the parameters, you can choose the specific parameter.
      (more on this in a second)

When you're ready, hit DISPLAY. The page will reload, once again displaying
your list of options at the top. This time a table will be appended to the
page showing all of the available parameters and all available options for
setting.

At this point we need to digress and discuss numerical IDs and their role
in problems. ID number are used to represent import files, script invocations,
responses, and subanswers within responses. The number generally represents
the order of these resources within a problem, but this is by no means
guaranteed. A multiple part problem may have parts 14 and 16. (You can set
different due dates for different parts of a problem if you so desire.)
Part 14 may have a single answer with the ID 15, and 16 may have two answers
with the IDs 17 and 18.

Parameters include the part and if answer-related, the subanswer (for example,
a due date is part-related, but a numerical tolerance is answer-related).
For example, the tolerance for part 16, subanswer 17 would be labeled
Numerical Tolerance 16_17.

You will set parameters by clicking on the link in the appropriate square 
in the table. If you want to set the value for this parameter for the full
course, choose the column labeled 'Any User, In Course, General'. At this
point, all occurences of this parameter (for example, Numerical Tolerance 16_17)
will have this default value unless overridden. Note - this means all occurences
of Numerical Tolerance ***16_17***, not ALL numerical tolerances.

What parameter will take precedence? The priorities are shown lowest to highest
left to right in the table. The  last two columns will show the value in effect.
A specific setting for a student will take priority over a course-wide setting.

What about defaults?
Parameters labelled part 0 provide the default for a given level. 
Setting the Due Date for Part 0 of a problem in the 'For enclosing map'
column will set the default due date for all problems in that map.
You may have to make sure you have at least one 1-part problem in your
assignment to set the defaults! We're working on this.

What I will typically do is create an assignment, for example assignment4.page.
I will then set open, due and answer dates for part 0 of one of the problems.
I will also set the available points and maximum number of tries.
This will open my assignment.