[TYPO3-dev] Custom BE Web module -> how to prune Pagetree

[misza]

Hello everyone,

I've developed my custom backend Web module, that is similar to ListView 
(with some additional features, but this actually  is not so important :o).
The problem is that after clicking on my module I want to have on the 
Pagetree only selected system folder visible (so I want to set arbitrary 
mount point for my ext).

I'v tried even sommething like this:.

$GLOBALS['BE_USER']->setAndSaveSessionData('pageTree_temporaryMountPoint',intval($pid));
t3lib_beFunc::setUpdateSignal('updatePageTree');

but with very poor effect :-/.

Is there any possible way to access pagetree object and set desired mount 
point for a module (a Web module) ?



Regards,
Michal