Confiforms set default value in dropdown field which users may not edit

[Jan]

Probably an easy one for the experts: 

I have a dropdown field with status (open, in progress, done). This field may only be edited by a small group of users. When any user adds a new dataset in the form, the status should always be "open" at first. 

I tried to realize this with Rules for Field Definition where I set 

condition = status:[empty]
action to execute = Set value 
Values to set = status=open 

But this does not work when a user is adding a dataset who is not in the specified group... 

Thanks for any help

[Jan · Accepted solution]

Solved: This was easier than I thought, the default value is not just set by the registration control macro. 

[David Pressley]

If the default value is not just (read: only) set by the registration control, what other field must be set?