Press - This trigger fires when the selected button is pressed, aka when your finger touches the button
Held - This trigger fires when the button is pressed and held, for the amount of time set in the "Held timeout" for that button
Repeat - This trigger fires when the button is pressed, held and starts to repeat, after the amount of time set in the "Repeat interval" for that button
Release - This trigger fires when the selected button is released, aka when take your finger off of the button
Clicked - This trigger fires after you press and then release a button
When a button is depressed it will register an initial "press" action, followed by a "release" and a "click, " in that order. If held long enough (dependent on the Held Timeout) a hold and release will follow the press in that order.