Tracking when foot bone makes contact with x plane

[NicoleVR]

Hello, I am trying to figure out how to track the steps of an avatar and get notified each time the foot bone makes contact with the floor ( or x plane). I need notification of the initial contact with every step. I have been looking at proximity sensors, but I could not make it work. I have tried to get the bone position but that was not working for me either.

I am fairly new with Vizard, so any help or ideas would be greatly appreciated.

Thank you