How to configure sensors for each lanes?

Hi

I’m a bit confused on how to configure sensors for lanes.

Let’s take a simple example for a vehicle, which has 2 baros , 2 GPS, 2 airspeeds, 3 mags and 3 IMUs.

  • As there are 3 IMUs, so 3 lanes

Now, EKF3: Sensor Affinity and Accumulated Error Lane Switching #14674 says:

LANE 1 2 3
ASD 1 2 1
BAR 1 2 1
GPS 1 2 1
MAG 1 2 3

What I’m confused is, why not below configuration?

use BAR2 and GPS2 for lane #3, not BAR1 and GPS1 for lane #3, anyway to adjust these configurations or any rules for lane configuration?

LANE 1 2 3
ASD 1 2 1
BAR 1 2 2
GPS 1 2 2
MAG 1 2 3

— EDIT
I didn’t find any clue about this also.