How to hide certain audio/subtitle streams in scenarist BD?

So basically in Clip, I have one video, four audios, and three subtitles. I want to create two playlists for this same clip, one playlist will show only the first three audios and the first two subtitles; while the other playlist show only the fourth audio and the third subtitle. I can't seem to find the way to do it in scenarist BD, the STN table allows only moving around order of the streams, but not hiding any? Need some help, thanks.

I haven't tried yet, but when you generate the "stream" you are asked about the tracks that you want to keep. By default all tracks in the clip are checked but you can uncheck the track you don't want to "appear". You can made more stream from the same track. In that case if you drag the stream in the scenario editor you'll see that the disk size will not increase. Let me know if this works.

Clip filtering works, but I would like to know if there's any possible way to achieve this AFTER creating the playlist because we sometimes might need to add new audio/subtitle streams to clips during the authoring process. It's very easy to do this in DVD, it couldn't be impossible to do it in BD, right?

In the Stream Editor you have right click on the Clip name ([Clip : clipname] <disc>) and choose "Select ES...". This will popup the same dialog window that appear during the first stream creation. Select which ES you want to keep (or discard) and you're done!

Yes, Select ES... You just made my day, thanks so much, mp3dom!