What's the point of this line if you overwrite the lvl_sen value in the next 2 lines?
I think the second lvl_sen is not needed, the one without the offset.

LAST_DD_LEVL is in FW not in dialin.
In dialin, you use the Num_of_levels, so this one is correct here.
Example:
In this case Num_of_levels is 4 (D6,D63,D98,D46), if in the override adding 4 to the fp level sensor, which is 0, the payload will provide 4, which will be between the FIRST_FP_LEVL and LAST_FP_LEVL FW value as P25 index is 4.

Why increment the number when you didn't add a new sensor?

This should be LAST_DD_LEVL not NUM_OF_LEVELS if DD and FP levels are in same enum

LEVEL_OFFSET?

Typo, response

Typo, response

Fix the header

Added

Add a TODO comment to change the message once implemented in FW

removed duplicate

ROPump is repeated