I have restart from scratch.
I have create the enhancement of the AIC_CMCD_H, there is already the Context Node BTCUSTOMERH.
The fields are present, the bind was not done, I create it, with the component controler / node BTADMINH.
The field is mark as not bound, and not editable. For a field, I generate the Getter and Setter methods. I edit the GET_I_ to remove the rv_disable = 'TRUE'.
When I debug the method SET_... when the method run : dref = current->get_property( 'ZZCUSTOMER ...').
I see the first assign of ME->CONTAINER_PROXY->DATA_REF->ATTRIBUTE_REF point to a structure : CRMST_ADMINH_BTIL
but my fields are in the CRMST_CUSTOMERH_BTIL ...
so the assign won't work, I can't have my data, save my data.
here I am
If you've got an idea 
thanks
Fred