This is a great DIY build & education for me.
I notice there are 'Hinges' available for the Extruded Aluminum frames. I was wondering if you have seen anyone use these and create 'masking' panels? I am thinking if parallel aluminum frames were attached, with a hinge and they were all covered in the black velvet, maybe they could be rotated in & out (or up & down) to create a Masking type process?
I am thinking of using this method as my entire "Screen Wall" & Screen frame, and I have a long way to go... but I keep finding myself learning about new things/ new ideas and getting the cart way before the horse :-)