It won’t work straight out of the box because it is a multi channel device. So you would initially get an on/off but just for one of the buttons
The good news is that there are community members who have custom code and have it working with all four buttons. You would need to be using the SmartThings classic app in order to initially set up the device and I’m not sure if you can access all four of the buttons through the Connect app or not. But you can through the classic. 
Take a look at the following thread and if you have any further questions, ask there, as those are the people actually using the device. (This is a clickable link)