DVR Best Practice

We have Adobe Media Server 4.5

What's the best way to get all HDS-LIVE streams to enable dvr without having to create a f4m file for each stream? We are currently using the livepkgr's created f4m file at http://localhost/hds-live/livepkgr/_definst_/testevent/teststream.f4m however DVR isn't enabled. I tried making a manifest.xml file but it only effects the f4m generated at http://localhost/hds-live/livepkgr/_definst_/testevent.f4m. This would be fine but if there is more than one stream I don't see any documentation on how to limit the media tags down to the stream you want to view. We do single bitrate streaming currently. Any help is greatly appreciated.