Delete all your drums first or else the chart will break.

ALSO in order to get this drum kit to work you will need a "pedal close button" mapped to either your controllers or pedal of some kind.
You may notice there are 3 hi-hats on the highway, and 2 on your drum kit. 

You will find the 3rd one inside your left hi hat. 
                           Leave it be.

On the right hi hat make sure you disable "pedal close" sounds
You can do so by clicking on the settings button just above it and disable it from there.

Whenever you see 2 hollow hi hat notes together on the left side of the note highway
you will need to use a pedal hi hat button in order to hit these notes.

Watch my Youtube cover to see what i mean
- https://youtu.be/27SaPYJV3kY