Pls Help! Get confused in defining the "Initiator" user roles

[Victor Lung]

Dear All,

I am confused in defining the "initiator" role. How should I define the user
that open and fill in the form as "initiator"? Should I choose "User Names
form the Form" in the "Modify User Role" window? But what Field or Group
should I select from the form?

Thank you very much.

VIctor