NVIDIA-Linux-x86_64-352.68 --multiple-kernel-modules not supported anymore?

Driver NVIDIA-Linux-x86_64-346.59 supports it, however NVIDIA-Linux-x86_64-352.68 does not. This option still exists in driver help and readme. There is no info in changelog about discontinuation of support for it and also help does not show it as obsolete.

Is it a bug? or
you are going to reintroduce it soon? or
make it in a different way?

Thank you in advance
Best Regards

Build and install multiple NVIDIA kernel modules. The
maximum number of NVIDIA kernel modules that may be built
is 8. ‘–multiple-kernel-modules’ implies

You might get a quicker response on this if you post in the linux driver section.