File to edit: ow_plugins/newsfeed/mobile/controllers/feed.php
Function to edit: public function feed()
Original code:
$feed = new NEWSFEED_MCMP_Feed(new NEWSFEED_CLASS_UserDriver(), 'my', OW::getUser()->getId());
Modified code:
$feed = new NEWSFEED_MCMP_Feed(new NEWSFEED_CLASS_SiteDriver, "site", null);
Tested only on Oxwall 1.7.0.
This modification will be erased if you update "Newsfeed" plugin in future. Keep track of what and where you are changing.