Use it to program drum patterns in Addictive Drums 2. Contains a page for each kit, plus basic transport controls for Reaper.
Your device needs to be connected via MIDI as well as WiFi.
The HiHat opening, ride and snare hit spot are controlled by CC. The CC number you need to set in AD2 is on the slider.
The velocity is set according to where you tap on the button.
Slots that are not used in a kit are greyed out, but they still work if you add a piece to that slot.