Powermail: fill empty fields with a default value

Question

I am trying to create a contact form in which users can fill out optional fields. I set plugin.tx_powermail.settings.setup.misc.showOnlyFilledValues = 0 so that empty fields are still shown on the confirmation page (right before submitting the form) and in the email as well. So far so good, but in this case, I would like to give them some sort of default value. So it's not like Name: _______ but more like Name: empty. How would I do that?

TYPO3 7.6, Powermail 4.0.2

Answer 1

You can manipulate the values on the confirmation page with TypoScript (see https://github.com/einpraegsam/powermail/blob/develop/Configuration/TypoScript/Main/setup.txt#L606 for a small example). With some lines of TypoScript you will get it to work :)