Hello - Although I didn't find out very much (nothing really) about this in the user manual, Optoma shows that it works:
https://www.optoma.de/product-de..., picture gallery, second to last picture.
What I didn't see: Where/How Far on the Ceiling, Rotate Picture Settings....
I would ping the customer service here:
https://helpcenter.digitec.ch/hc... - then you are safe/secure