Can I create a normal map on 3ds max with only one object (because

>>541149
One object?
And where do you expect the normal information to come from exactly?
If you want to bake a smoothed normal you can just make the normal map uniform blue color, then it will be controlled by your smoothing groups
whats the point of normal map with no additional information?

>>541158
Yeah I know but by creating a clone of the object and adding poly (subdivision ...) can it work?

>>541162
Adding poly? you meant just adding a single smoothed out subdivision?
Again, whats the point?
It would work alright, but you will get typical baking artifacts
You will literally get a better result by setting up your smoothing groups properly

>>541164
Thanks anon, I'm just a beginner.