GCP VM with 4 Nvidia T4 - no SLI mode shown (Cinema 4D, Redshift

we’re trying to run Cinema 4D with Redshift on 4 T4 - we get the error shown in the screenshot.

Redshift tells us to Disable Multi-GPU mode, unfortunately that is not shown in the Nvidia Control Center on our Google Cloud Platform Virtual Machine. What can we do? Any help is appreciated! Thanks!

Here’s the error message from Redshift in Cinema 4D

FYI, unfortunately Redshift RT (RealTime) also does not work - maybe a connected issue?

As far as I know, it might be changed via BIOS/UEFI? How could that be accessed via the VM?