[VIVE TRACKER] Pogo Pin Send Trigger Data Help

Development Platform & Builds XR Development
1

Hi all,
We are sending a trigger event through the Pogo pins of the Vive Tracker.
We setup the bindings in SteamVR to be a Tracker in hand and set its trigger to be the same input action as in UE4.

My questions:
How do we tell which Tracker’s trigger event was pulled in UE4?
How can we get 4 or 5 Tracker’s trigger events at the same time?

Thanks