According to an example, a system and method for providing a user interface by which to display and/or control stimulation parameter settings includes a processor displaying a ray at an angle from a predetermined direction, and about a point representing a leadwire, that corresponds to a direction at which an electrical field is produced by respective electrical settings of one or more directional electrodes of the leadwire, and whose ray length corresponds to an electrical amplitude of an electrical parameter of the one or more directional electrodes. According to an example, a system and method for selecting leadwire stimulation parameters includes a processor iteratively performing, for each of a plurality of values for a particular stimulation parameter, each value corresponding to a respective current field: (a) shifting the current field longitudinally and/or rotationally to a respective plurality of locations about the leadwire and (b) for each of the respective plurality of locations, obtaining clinical effect information regarding a respective stimulation of the patient tissue produced by the respective current field at the respective location and displaying a graph plotting the clinical effect information against values for the particular stimulation parameter and locations about the leadwire, and/or based on the obtained clinical effect information, identifying an optimal combination of a selected value for the particular stimulation parameter and selected location about the leadwire at which to perform a stimulation using the selected value. According to an example, a system and method for outputting historical stimulation information includes a processor configured to assign individual display regions, e.g., pixels or voxels, (or a larger region) a score based on those volumes of activations (VOA) in which the individual display region had been included and the scores assigned to those VOAs, and display in a display device a map of varying graphical ind
