BMV-712 Smart Relay

In the settings of relay in BMV712 there is supposed to be a REM (Remote Mode) but i have MAN (Manuel Mode ). Is my BMV712 to old?
If the hardware is too old, no problem i’ll buy a new one.
I need at least three relays in my system to go to 3.52 or ells I’m stuck with 3.42.

BMV-712 Smart
Firmware version v4.16
Serial number HQ1740ZUJ6I