Hallo AlexPolo!

3dviewermax seems really simple,
I made a quick test...

https://app.3dviewermax.com/631a449a-8d70-482c-8820-d61ba5217058

There's one thing I don't think I've understood yet: is it possible to split the models without the receiver being able to change them?

2023 11 26: My question has already become superfluous, I'm a bit further on now, that's quite enough for me.
There is the possibility to lock the object, I came across it. Making the structures with jpg is very easy.

https://realitymax.co/xkDRQO

Thank you and best regards!

Franz