Optional (but mandatory to submit the form when applied) E-mail field for https://profiles.tiki.org/User_Tracker
YAML
preferences: trackerfield_userpreference: y objects: - type: tracker_field ref: email_user data: name: $profilerequest:Name for the "E-mail" field:$E-mail$ tracker: $User_Tracker:user_tracker options: email type: preference visible: creator_editable visby: - Admins flags: - public - mandatory