RAK4631 Internal Flash as USB

I am trying to use the flash to store configurations for my app, I have followed the examples of adafruitlittlefs and it wors.
However, I would like to know if I can connect the device to my computer using USB and load configuration file to the flash from the computer itself.
This will avoid a lot of work due the quantity of devices +1500 devices to be configured.

As far as I know this is not possible.

I wonder that also.
I will need to create some configuration menu over BLE or Serial…