Scribbler S3 how to set calibration values in EEPROM

I see from the S3 firmware (.spin) that there are a few calibration values:

  DEFAULT_FULL_CIRCLE   = 955
  DEFAULT_WHEEL_SPACE   = 153
  DEFAULT_LIGHT_SCALE   = 0
  DEFAULT_LINE_THLD     = 32
  DEFAULT_OBSTACLE_THLD = 1

and that the firmware will use values stored in EEPROM if there are "reasonable" values at the proper address. I see a systematic bias in turning (maybe also distance), and I would like to adjust the 5 bytes of wheel calibration data.

What tool can I use to write to the S3 EEPROM? Any chance I can get BlocklyProp to do it?