The exisiting profile substutions option is a great one, but we still
have to do all the editing work twice, because it doesn't work with a
recurring email delivery. We now save the original email as a template,
but sometimes personalisation fields get broken when using a template
for test purposes in a single send delivery. What we need is an optional
'confirm' button in a recurring email, so you can prepare a message,
test it and afterwards release the 'confirm' button, so the recurring
email ...