HiLook for user input on the events screen-->mobile advance-->Use the "for each started or dragged ..x of touch"inside just put something like.. if (x of touch) is inside the button and (y of touch) inside the button...then...That way even if something else touches the screen the button will still detect that there's somebody touching it, instead of just detecting the new coordinate of the new touch.you have to use that under the "when updating" blockI think this is the most accurate way to make multitouch work, I'm not sure about the performance but i'm doing some tests for my game