A computer system provides a user interface efficient in its use of screen space allowing values to be provided for attributes. The computer system comprises a processor and a display, an input interface, and a memory coupled to the processor. The memory stores instructions that, when executed by the processor, cause the computer system to: display, within a first region of the display, a plurality of icons corresponding to a plurality of attributes; receive, via the input interface, input corresponding to a drag-and-drop operation wherein a particular one of the plurality of icons is dragged to and then dropped at a drop position within a second region of the display; and assign a value to an attribute corresponding to the particular one of the plurality of icons based on a location of the drop position within the second region. Related methods and computer-readable media are also disclosed.