Hi,
Thank you for your reply
Have you tried the forwarding feature of Hyperion.NG?
You forward the Image processed by Hyperion TV (Instance 1) and forward it to Hyperion Ceiling.
On Hyperion Ceiling you do the layout as you need it.
I didn't try Hyperion.NG but your solution seems interesting. I will try it soon.
Going forward, you might consider to connect the ceiling LEDs to and ESP running WLED.
Then you can run everything from Hyperion TV whereas WLED would just be a 2nd instance within Hyperion TV.
I already have the RaspBerry Pi hidden in my ceiling so I'm not going to change my setup for now but thanks again!