[TYPO3-english] How I can send title in hidden filed of powermail

[Dmitry]

Hello All,
I'm using TYPO3 7.6.2 and powermail 2.21.0
On my pages I call powermail form via typoscript 

lib.callback >  
lib.callback = RECORDS
lib.callback {
  source = 9
  dontCheckPid = 1
  tables = tt_content
}

I want to send page title in hidden filed. To have this done automatically on different pages. How I can do it? 
Thanks.
-- 
Dmitry Vasiliev
skype: thule-varahi