Hi Ralph,
You like you are using a variant of GPR Motorcycle from MoTeC Europe. If you navigate to the help in M1 Tune, it defines which firmware resources are used for which IMU sensor types:

- GPR Motorcycle Firmware items.jpg (381.21 KiB) Viewed 3612 times
You can also navigate to the top of the tree in all calibrate and it is written in the help:

- Bosch IMU finrmware channels from all calibrate.jpg (207.41 KiB) Viewed 3612 times
Once you navigate to the channel values show in the list, it even provides you with all the information you need to correctly calibrate each of the sensor inputs in the package:

- Channel calibration values.jpg (214.98 KiB) Viewed 3612 times