pid per extruder

hello

for #define PID_PARAMS_PER_EXTRUDER // Uses separate PID parameters for each extruder (useful for mismatched extruders)

is it possible to define the pid settings within firmware for e1,2,etc? e.g. is there something along the lines of "DEFAULT_E1Kp" or do you need to run m301 and commit to eeprom after flashing?

Thanks