Abstract: An apparatus includes a touch sensitive display for displaying a master application frame; a detector configured to detect a touch point of a user on display; at least one processor; and at least one memory including computer program code. The apparatus is configured to display the master application frame including a plurality of slave application frames; determine at least two slave application frames based on a first touch point; define a sweep function configured to detect a sweep gesture on the touch sensitive display between the first and a second touch point, and adjust sizes of the determined slave application frames, in a non-overlapped manner, based on the detected sweep gesture. Furthermore, the apparatus is configured to detect a third touch point on a border line for at least two slave application frames; and trigger an overlapping slave application frame in response to the detected third touch point.