How to setting CASA CMTS with a Hybrid Version that can both DOCSIS and EURODOCSIS

You can mix DOCSIS and EURODOCSIS in the same chassis, but typically not in the same Mac Domain (with Caveats.... see below)

The only setting you need is the Annex setting in interface QAM
interface qam 0/0
annex a ! EuroDocsis 8 MHz channels
annex b ! Docsis with 6 MHz channels

You can also change the annex on a per channel basis e.g. channel 0 annex a, but this would probably only be useful in two situations 1) if you operate a EuroDocsis Cable Modem network but use North American STBs which only do Docsis (DSG), you could specify Annex B for the STB channels and Annex A for everything else. or 2) if for some reason you had a mixed environment of Docsis / EuroDocsis modems (i.e. a lab) you could assign some docsis channels to Annex A and some to Annex B.

If you do choose to mix them in the same mac domain there could be some caveats on how many channels could be in each annex. use the command show interface qam 0/0 block to determine how the QAM hardware is breaking your QAM channels into blocks at the hardware level, different hardware supports different numbers of blocks. Typically each block should be the same annex.