setting up MOGA controller to play stranger's wrath help

[captnpenguin]

Just got a MOGA Hero Power bluetooth controller so I can play Stranger's Wrath on my Galaxy S6 (has nougat update) and I can't seem to figure out how to set it up to use. Downloaded the suggested app, but strangers wrath isn't one of the games listed. Supposed to be able to manually map out the buttons, but no instructions anywhere on how to do that. Would love some help. Thanks!