Does Encore support "Picture-in-picture" (PiP or Secondary Video) - BD-J "Bonus View"

Hello,

Kurt_Gruber ​asked this question in 2008. jbowden​ said it's possible, but it must be done in Premiere or AE to create the video.

I'd like to create my very first ever BluRay for a portfolio of my work. I've got some student films I'd like to include in the timeline, and I'd like to film myself as a secondary video overlay during the student film. The overlay will be small (about 30% of the total screen size). I just pop-up over the original timeline, the original timeline volume drops to say 35% and my voice and picture goes over that.

I have seen WB do this PiP (Picture-in-Picture director commentary) on the Band of Brothers BluRay collection, plus a few others.

On Band of Brothers Special Features, one of the original soldiers comes on screen and explains his battle tactics during the presentation of the show. He then flicks on and off. If you fast forward during this commentary his window disappears, so it's CLEARLY an over-lay, not a re-render. Not only that, but they also had maps coming up on screen as an optional over-lay over the episodes. Maps and facts about the soldiers.

The main title track (student film) is 1080p FullHD, and I'm thinking of filming myself talking over it in FullHD, then resizing it down to whatever needed.

I don't know how to do this in Encore however. If it's possible to set this up in Encore, how? Please help. I'm "relatively" new to Encore. I once made a DVD many years ago using Encore (full menus), but I'd like to update this knowledge with a fully mastered BluRay with this special feature. I hope Encore can do it.

Failing this, my backup plan idea was to re-render the entire timeline sequence but with my commentary video box over the original timeline... If I do this, could I then set this "new" re-rendered video as a secondary video/angle?

Is setting up a second angle easy to do? Or if I set up a secondary angle to run concurrent with the main timeline, will the viewer get an annoying "angle" button appear on screen every time they watch the main timeline?

Maybe I should bite the bullet and set up the secondary video as a separate timeline and just link the special features Director Commentary to that? But then how did WB do it on Band of Brothers as an overlay?

Many thanks for your help.

Please be as technical as you want. I might not understand at first, but I'll write it down and research it to find out how to do it as best I can.

Thank you.

Gus Diaz