I previously use 5.00 as bcdDevice configuration value which causes the driver can't make link between serial number and COM port number. So, I decide to change it correctly to FT232BL's bcdDevice and make this feature work correctly.
The eeprom emulation is likely to never be implemented. I don't want any foxy trader from Taobao or Aliexpress use this firmware to imitate real FT232 device and causes FTDI to ban our firmware.
P.S. I'm working in progress with STC MCU support, USB Blaster support (Odd, Even serial port line-coding support)