UbiSwitch BB-UBS-B-1 Port mirroring

I am trying to set up a port mirroring (test port) configuration on a BB-UBS-B-1 switch. Based on Table 5, section 2.3.2 of the BB-UBS-B-1 documentation, the port mirroring feature is supposed to be supported out-of-the-box on release of the BotBlox Switch Management software, which provides an option to set the mirroring. According to the website, this software has been deprecated and replaced with bloxoslite firmware, which, according to its documentation, does not expose an interface to set up port mirroring.

Can the deprecated BotBlox Switch Management still be used with BloxOsLite: v1.0.0+0 to set up the referenced feature and save this setup to EEPROM memory? Can the UART interface be used to set up the referenced feature via an undocumented command?

I would appreciate any information on the subject, since in case this feature is unimplemented, it would require me to manually set up the relevant registers for the Marvel IC by modifying the STM32 binary code, which I would like to avoid.