Render hands over the fake keyboard

Hello !

I have a "how to" question.

i see many videos on youtube where pianists record their hands "only" and they all seem to be over the fake keyboard (the one we see in the SeeMusic app).

What i want to achieve is to have the complete black background and show only my hands over the keyboard (+ the notes coming from the top) and not see the ground (my feets etc..) of my room.

On these youtub videos, you see the arms of the pianist, which means that the video is not cut until the keyboard.

is it possible to achieve this with SeeMusic ?

thanks a lot in advance