Focus 3 How to get button input from headset

[kevinleekley]

Hello! 

I tried finding how I can use the button on the left side of the Focus 3 headset for input but can't find that info anywhere.

My Unity project is using Vive Input Utility but tried looking through Wave Native and Essence SDKs as well.

Am I able to use the headset button as input in my Unity project with any SDK?

Thanks!

Kevin