BIGTREETECH PI TFT50 V1.0 TFT-display for Raspberry pi supports multiple instances?

Hi all,
I have ordered 2 BIGTREETECH PI TFT50 V1.0 TFT-display for my raspis.

I know mulitple instances are not officially supported (still right!?) but I own 14 printes and I am not willing to invest in a pi each!

So here ist the quesition

Does sombody have an idea or get it to work, that the BTT 5" display works with several instances of octopi on one Pi 3 or 4 ?
I would really appreciate if somebody has already figured out if it works, and if yes could you please provide me with a guide or website how to do it

Thanks in advance