--- /dev/null
+Patron registration administration
+----------------------------------
+
+Email addresses
+~~~~~~~~~~~~~~~
+
+indexterm:[patrons,email addresses]
+indexterm:[email]
+
+
+It's possible to set up the patron registration form to
+either allow or disallow users to enter multiple email
+addresses for a single patron, separated by a comma.
+
+To do this, go to Administration -> Local Administration
+-> Library Settings Editor. Search for the setting called
+`ui.patron.edit.au.email.regex`.
+
+If you'd like to allow multiple email addresses, set this
+value to `^(?:(?:\b[^@,\s]+@[^@,\s]+\.[^@.,\s]+\b)(?:,\s?(?!$)|$))*$`
+
+If you'd like to disallow multiple email addresses, set
+this value to `^(?:\b[^@,\s]+@[^@,\s]+\.[^@.,\s]+\b)$`
+
Date_ button will work, since the permission group determines the expiration date.
============================================================================
+Email field
+^^^^^^^^^^^
+
+indexterm:[patrons,email addresses]
+indexterm:[email]
+
+It's possible for administrators to set up the email field to allow or disallow
+multiple email addresses for a single patron (usually separated by a comma).
+If you'd like to make changes to whether multiple email addresses
+are allowed here or not, ask your system administrator to change the
+`ui.patron.edit.au.email.regex` library setting.
+
Patron Self-Registration
~~~~~~~~~~~~~~~~~~~~~~~~