example for BMI2_WRIST_WEAR_WAKE_UP_WH

I see 2 features BMI2_WRIST_WEAR_WAKE_UP_WH and BMI2_WRIST_WEAR_WAKE_UP

there is no usecase or example provided for the BMI2_WRIST_WEAR_WAKE_UP_WH  also i do not see
the implementation in library for this

Can you share more detail on this 
as my usecase is for a Watch wake up gesture