Under Send Invitations → Serial Mail → Content, I can't seem to edit the Sender name, Sender email, or Reply-to fields — they're locked to a small set of pre-existing values (my account name, and email-address-only) rather than accepting free text. I'm the project admin with full authorization rights, and I've also added a colleague with full access, but her name doesn't appear as an option either. Is this locked at the server level, or is there a setting I'm missing to add a new sender name/email/reply-to? Thanks