Thank you for taking time to assist me. I have a rectangular surface that i want to hang from it's 4 corner points. The corners on two sides could be joined together clipping on to a centre support beam (like in my excel drawing - sorry only software I have available) and then the support beam is hanging from a centre swivel hook which hangs from the ceiling.
My question is how would one achieving horizontal balance if a weight was placed off centre on the horizontal surface.
I can't use a vertical counter balance so have tried looking at linear counter balance. I have found some examples online but have no idea how this would be implemented here. I have no engineering knowledge so any assistance would be greatly appreciated. If you could even just tell me what I should be searching for.