1)Create input contect array inside player character Blueprint. 2) assign input context mapping assets to the array 3) enter the custom input button key name e.g “Gamepad Face Button Right”). 4 ) run this code on begin play , or in tick event
https://dev.epicgames.com/community/learning/tutorials/qBdY/unreal-engine-epic-for-indies-blueprint-tutorial-find-input-action-conflicts-for-a-given-key