The present invention relates to a mobile terminal ad a method of controlling therefor. More particularly, the mobile terminal includes a sensing unit, a display unit configured to output a soft key including at least one button, and a controller, the controller configured to sense a first input signal for selecting the soft key in a state that first content is outputted on the display unit, wherein the first input signal corresponds to a touch input signal for dragging a touch from a first point to a second point and wherein the first point corresponds to the button, the controller configured to execute a multi-window mode based on the first input signal, wherein the multi-window mode corresponds to a mode for outputting second content on the first content.