[TYPO3] Clear cache of a branch when using tt_news

[Florian Seirer]

Hi list!

We are in the middle of the process of migrating a website with about 
7000 pages and close to 200 editors to typo3 3.8.1.

Every editor can publish news (tt_news) in his part of the page tree 
which requires him to clear the cache for all of his pages.

As far as I understand the editor now has the following options to do this:
1) Edit the page properties and select "[Clear cache]-> This page" from 
the select menu. This is necessary for every page in his branch.
2) Make use of the extension cl_becache. Now the editor clears the whole 
frontend cache. The problem here is that there could be a serious 
performance drop if the FE cache is cleared every minute or so. Editor 
could start to clear the cache every time they change something, even if 
they don't have to and are told not to do this.

What I'm looking for is the possibility for an editor to clear the cache 
only for his branch.

To make this more understandable this is how a branch could look like:
+PageX (Editor has no rights here)
+PageY
  -Page1
  -Page2
   -Page2a
   -Page2b
  -Page3
  -Page4
  -SysFolder (containing the news records)
+PageZ

I want the editor to clear the cache of PageY and then the cache of all 
the children pages gets cleared too.

Any ideas?
Your help is greatly appreciated...