I cannot find the slightest hint in the datasheet about how to set these parameters.
There is also no definition about the addresses of the different paramters. Given the description of the serial protocol the only way to set something is to send data after the first 8 bytes were read. But without a description of the process this probably won't ever be successful.
The only mentioning I found is a German documentation of how to program the chip. You should use a hardware from Melexis and a Windows software to set these parameters. I'm quite sure that there is another way to do this but it seems that Melexis is keeping that secret. Might be the time to write to them and ask.