Editable Published Fields in Project Web

[Joma]

Hi Project gurus:

I want to add an editable field in the Timesheet view
(e.g. Start Date).

I have added a field from Tools, Customize, Published
Fields, and enabled the "Let resource change field"
option.

I then added a View (Timesheet) in the Administration of
the Project view.

The new field does appear in Timesheet view, but it is
not editable. How can I make it so? Did I miss a step?

Any help will be appreciated.