[TYPO3-dev] Defining TS setup config. via ext script

[Simon Tuck]

Hi list,
I would like to write a small extension to define certain ts setup config settings which we have found to be pretty standard across many of our 
installations. In particular I am looking at doctype stuff and language settings, which could easily be read out of the current static info and 
sys_language settings. This appears to be impossible though: I cannot successfully manipulate tsfe->config in the FE rendering process. So my 
question is: is there a way to do this (and I'm just missing it) or should I propose a hook for the fe class?
Cheers
Simon