[Zope-CMF] Controlling creation of content

[Chris Withers]

Hi,

I've been thinking about http://zope.org/Collectors/CMF/114 again after 
a year and a half ;-)

The change Shane made in revision 1.9 of:

http://cvs.zope.org/CMF/DCWorkflow/WorkflowUIMixin.py

...suggests, that you might now be able to control who can create 
content and where they can create it using DCWorkflow.

Is this what the "Instance creation conditions" section is for on the 
properties tabs of DCWorkflow instances in CMF 1.5?

If so, what can go in the permissions, roles, and particularly the 
groups box?

How these boxes interact with each other and how does the "expression" 
box come into play?

Also, is there any way "expression" could point to a python script so 
really funky stuff could be done? If it could, how can you get at the 
names available to the expression from within the script? _['somename']?

cheers,

Chris

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