after a week of intensive work, I have a firmware version that meets BELI1910's request!
the structure has remained the same but I have added a second diseqc engine type output. the control is of the USALS type (therefore limited to +/-80°), the precision is 0.1° (-79.9 to +79.9).
the consumption of these engines is low they can run at the same time.
the elevation command remained standard (for actuator).
the receiver remains in diseqc 1.2 mode and sends the sat number from 0 to 240, this number points to the memory of the positioner to recover the calculated and modifiable position, it is sent to the diseqc AZ motor.
BELI1910 will tell us if the precision will be sufficient!