I have created a survey form.  The Reply action opens the form also to
avoid prompts.  The Sender opens the form in an input state and their
From is a secondary approved email address.  The form has the alternate
Address set as the Initial Value for From.  The form opens in a
different state for the recipient.  The From box is hidden and a Cc box
becomes visible in place of it.  The alternate senders From address is
not correct for the recipient so I want to clear it out.  My use of
?default? was misleading.  I should have said I want to clear the
Initial Value.