There are cases when it is either very difficult or impossible to make a click using the Rise Event action, and then emulation of a touch event can come to the rescue.
How to work with an action?
The coordinates of the element you are interested in can be found using the Emulator Window - at the bottom of it, the current position of the pointer is displayed (if it is within the emulator window)
X (from, to) - horizontal coordinates.
Y (from, to) - vertical coordinates.
Touch will be performed within the specified coordinates.
Normal - More likely to hit closer to the center of the object.
Equally - even distribution within the specified coordinates.