A method of enabling to control a plurality of media data processing devices, the method comprising the steps of: - presenting on a display a first list of first items associated with source media data processing devices of the plurality of media data processing devices and a second list of second items associated with destination media data processing devices of the plurality of media data processing devices, wherein an arrangement of the first and second items on the display is changeable, the arrangement being a position of one of the first items in the first list and one of the second items in the second list, - presenting on the display an indicator for indicating a predetermined arrangement of a particular one of the first items in the first list and a particular one of the second items in the second list, in which predetermined arrangement an operation relating to a media content transfer between a particular one of the source media data processing devices and a particular one of the destination media data processing devices is executable on the basis of a combination of the particular one of the first items and the particular one of the second items, the predetermined arrangement being a predetermined position of the particular one of the first items in the first list and the particular one of the second items in the second list, - obtaining user input signals from user input means to select the particular one of the first items in the first list and the particular one of the second items in the second list by positioning them in the predetermined arrangement, - presenting the selected particular first and second items in the predetermined arrangement, and - enabling execution of the operation by a source media data processing device and a destination media data processing device of the plurality of media data processing devices on the basis of the selected particular first and second items. - presenting on a display a first list of first items associated with source media data processing devices of the plurality of media data processing devices and a second list of second items associated with destination media data processing devices of the plurality of media data processing devices, wherein an arrangement of the first and second items on the display is changeable, the arrangement being a position of one of the first items in the first list and one of the second items in the second list, - presenting on the display an indicator for indicating a predetermined arrangement of a particular one of the first items in the first list and a particular one of the second items in the second list, in which predetermined arrangement an operation relating to a media content transfer between a particular one of the source media data processing devices and a particular one of the destination media data processing devices is executable on the basis of a combination of the particular one of the first items and the particular one of the second items, the predetermined arrangement being a predetermined position of the particular one of the first items in the first list and the particular one of the second items in the second list, - obtaining user input signals from user input means to select the particular one of the first items in the first list and the particular one of the second items in the second list by positioning them in the predetermined arrangement, - presenting the selected particular first and second items in the predetermined arrangement, and - enabling execution of the operation by a source media data processing device and a destination media data processing device of the plurality of media data processing devices on the basis of the selected particular first and second items.